Cardisoma guanhumi

Cardisoma guanhumi, also known as the blue land crab, is a species of land crab found in tropical and subtopical estuaries and other maritime areas of land along the Atlantic coast of the Americas from Brazil and Colombia, through the Caribbean and Gulf of Mexico, to the Bahamas, and north to Ponce Inlet, Florida and Bermuda. The species varies in colour from dark blue to brown or pale grey, and may grow to in carapace width and weigh over .
Description.
The carapace of "C. guanhumi" can reach a width up to . As with many crab species, males possess dimorphic claws: the larger claw can grow up to around in length, eventually becoming larger than the carapace itself. The eyes are stalked and their colour ranges from a deep blue to a pale grey. Juveniles generally have a brown carapace with orange coloured legs. Females usually appear light gray or white. Adult colours are usually present between and . Individuals of the species can weigh over .
Distribution.
"Cardisoma guanhumi" is found throughout estuarine and other coastal regions of the Caribbean, and along the Atlantic coast of Central and South America (south to Brazil). In the United States it can be found in coastal areas of the Gulf of Mexico and Florida north to Vero Beach. Relatively cold water temperatures in the winter, less than , affect the larval survival and restricts the species' possibility of spreading further north.
Diet.
"Cardisoma guanhumi" is omnivorous, collecting and eating leaves and fruits close to its burrow whilst also eating insects and carrion. Like many crabs, this species is cannibalistic. They move in the shade during the day and will eschew moving in prolonged direct sunlight to feed at night instead. According to a fisherman who's been catching them for 50 years, once captured, the smaller ones take two weeks to filter (clean) before they are consumable and the larger ones take a month.
Senses.
"Cardisoma guanhumi" finds its food using light and sound detectors. Experiments show that crabs can be drawn out of their burrows to investigate the sound of falling fruit, once out they initiate a search for food. Predatory behavior is released in these crabs by detection of small moving objects. Crabs in the genus "Cardisoma" are able to detect small vibrations on the ground within the range of 10–1500 Hz and 70 dB. Visual acuity increases with body size due to an increase in both the number and diameter of ommatidia.
Life cycle.
The reproductive cycle is closely linked to seasonal weather patterns and lunar phase. Heavy rains in the spring initiate migrations. When this occurs, "C. guanhumi" begins to gain weight, as more food is consumed and gathered for the first few weeks of the migratory period. Males mate with mature females during this time. Fertilization is internal, and throughout July and August most females carry the eggs externally. After approximately 2 weeks the eggs will hatch and must be released into saltwater for the larvae to survive. Several spawns per year may occur with spawning season varying with location within the range. In Florida, spawning season lasts from June to December and reaches its peak in October and November. In the Bahamas the season extends from July to September, while in Venezuela spawning lasts from July to November. Eggs hatch into free swimming larvae with 5 zoeal stages and 1 postlarval or megalopa stage. Typical development time from hatching to the first crabs stage is 42 days under laboratory conditions; however, this time may be much shorter in wild specimens.
"C. guanhumi" is a slow-growing species compared to most other crabs. It requires more than 60 molts – roughly three times more than other species of crab – to reach its full size. The crab will generally seal the exit to its burrow using mud, 6–10 days before it molts, in order to protect itself from predators. (After molting, crabs are more vulnerable to attack as their shell has not yet hardened.)


Incilius signifer

Incilius signifer is a species of toads in the family Bufonidae. It is endemic to Panama and known from the Pacific Coast to asl, west of the Canal Zone. Prior to its description in 2005, it was mixed with "Incilius coccifer". Its natural habitats are tropical dry forests. It tolerates habitat modification but could be threatened by severe habitat modification.


Mesopsocus blancae

Mesopsocus blancae is a species of Psocoptera from Mesopsocidae family that is endemic to Spain.


Porcellio auritus

Porcellio auritus is a species of woodlouse in the genus "Porcellio" belonging to the family Porcellionidae that can be found in Spain.


Colotis fausta

Colotis fausta, the large salmon Arab, is a small butterfly of the family Pieridae, that is, the yellows and whites, which is found in Israel, Syria, Turkey, Iran, Afghanistan, Turkmenistan, India, Arabia, Chad, Somalia and United Arab Emirates.
Description.
The ground colour on the upperside of males is pale salmon buff, paler in specimens from desert areas, darker in those procured in regions where there is a regular though not heavy rainfall. Forewing: base and costal margin irrorated (speckled) in varying degree with dusky scales; an oval annular discocellular spot that varies in size; a black, festooned, postdiscal band that extends from costa to vein 4, beyond which the veins are margined with black; this colour broadened sub-terminally into a second transverse fascia, that is followed by a very fine black line on the extreme terminal margin. In specimens from desert regions the transverse bands and the black edging to the veins are narrow, but in moister areas the two transverse bands unite posteriorly and with the slender black terminal line give an appearance as of a double series of spots of the ground colour enclosed between them. Hindwing: more uniform, the veins with terminal black spots; costa broadly pale, fading to white. Underside: pale yellowish white, in many specimens from moist localities suffused with a beautiful rosy flush; the markings in such specimens prominent, in those from dry localities more or less obsolescent. Forewing: discocellular spot as on the upperside, but complete, and not an oval ring; in some specimens a postdiscal, dark ochraceous brown, narrow, curved band from costa to middle of interspace 2. Hindwing: a small discocellular spot in the form of an oval light brown ring always much smaller than the similar spot on the forewing; a postdiscal, curved, more or less sinuate band similar to and in continuation of the band on the forewing from the costa to vein 1. Antennae, head, thorax and abdomen dusky black, the club of the antennae on the underside, the hairs that cover the head and thorax and the scaling of the abdomen salmon buff; beneath: much paler, fading to white in specimens from dry localities. Sex-mark: a small patch of brown specialized scales on the underside of the forewing above vein 1, closer to the base than to the termen. On the upperside this is more or less prominent as a small raised spot.
Females are dimorphic. Form 1: ground colour and markings as in the male; the costa of the hindwing on the upperside concolorous with the rest of the wing; the sex-mark of course absent. Form 2. Upperside: ground colour white, often more or less irregularly suffused on parts of the wing with salmon buff; markings similar to those in the male, but very much broader. Forewing: base and costal area heavily irrorated with greyish-blue scales. Hindwing: the terminal spots at apices of the veins large and quadrate, often united into a continuous band which then encloses an anteciliary series of spots of the ground colour. In a few specimens there are traces of a postdiscal macular black band, in a very few this band is almost complete and very prominent. Underside: ground colour white; markings as in the male, but broader, darker and more prominent.
It is found in Baluchistan, Sind, the Punjab, Rajasthan and Bombay. The species is also found in Asia Minor, Arabia, Persia and Afghanistan.
Race "tripuncta", Butler. Very closely resembles the typical from, but this the southern form or race can be distinguished as follows: Male upperside has the ground colour of a much deeper tint of salmon buff, almost orange yellow. Forewing: costa heavily irrorated with black scales; discocellular spot larger, not annular; postdiscal black fascia at all seasons united to the subterminal fascia and black anteciliary line so that the whole apex and termen of the wing are black, broadly at the costa and gradually narrowed towards the tornal angle. This black area encloses never more than three preapical moderately large spots and a complete series of minute anteciliary specks of the ground colour. Hindwing: as in "C. fausta", but the terminal black spots very large. Underside: ground colour of a richer yellower tint than in the typical form; markings similar, those on the forewing dusky black, on the hindwing rose pink. Antennae, head, thorax, abdomen and sex-mark as in male of the typical form.
Female upperside closely resembles the female of form 2 of "C. fausta", but all the markings are darker and conspicuously broader, while the number of the preapical spots of the ground colour enclosed within the black area on the forewing is never more than three, the same as in the male. Underside, forewing: white sometimes faintly suffused with yellow; apical and terminal areas anteriorly light to dark ochraceous yellow; discocellular spot very large; transverse, postdiscal, macular dark reddish-brown band very broad. Hindwing: pale ochraceous yellow, sparsely powdered with black scales; transverse postdiscal macular band reddish brown and broad as in the forewing. Antennae, head, thorax and abdomen as in female form 2 of "C. fausta".
Western and southern India: Bombay, Poona, the Nilgiris up to , the Anaimalai Hills; eastern India: Orissa in Bengal, Ganjam; Ceylon.


Maiestas tareni

Maiestas tareni (formerly "Recilia tareni") is a species of bug from the Cicadellidae family that is endemic to India. It was formerly placed within "Recilia", but a 2009 revision moved it to "Maiestas".


Argiope anasuja

Argiope anasuja, is a species of harmless orb-weaver spider (family Araneidae) found from the Seychelles to India, Pakistan and Sri Lanka, and in the Maldives.
Description.
Female is about 8-12 mm long and male is 3.5-4.5 mm. After Cephalothorax greyish brown with hairs. Sternum heart shaped with hairy pubescent white patch. Palps bear spines. Legs greyish brown and hairy. Femora dorsally yellowish. Abdomen pentagonal and hairy. Dorsum yellowish with brown transverse bands. Three sigilla pairs distinct. Ventrum dark brownish with two longitudinal white patches.
Ecology.
Like other species of the same genus, it is known as a "signature spider"; it builds a web with a zig-zag stabilimentum somewhat resembling letters. The mature female of "A. anasuja" always rests at the centre of the orb with her head facing downwards. The orb has an opening at the centre and when 2.jagdisturbed she goes through the hole and exits on the other side of the plane of the web.
They are commonly found on flora of Mimosaceae family. They prefer to make the web in a plane of shadow in the daylight.
Reproduction.
Male is smaller than female. Male spins a web around the female's web, which is known as a companion web. After the mating, as in other common spiders, female kill the male. Female lay eggs on the companion web and wrap them up into a sac. Spiderlings eat each other in the sac until the strongest spiderling break the sac wall. The sac can hold from 400 to 1,400 eggs.


List of birds of the Netherlands

This is a list of the bird species recorded in the Netherlands. The avifauna of the Netherlands included a total of 526 species documented in the wild through September 2020 according to "Checklist of Dutch bird species". The checklist "incorporates all decisions by the Dutch rarities committee 'Commissie Dwaalgasten Nederlandse Avifauna' (CDNA) and the Dutch taxonomic committee 'Commissie Systematiek Nederlandse Avifauna' (CSNA)". Of these species, 197 are accidental, 13 have been introduced by humans, and one is extinct. Two species were inadequately documented before 1800.
This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (English and scientific names) are those of "The Clements Checklist of Birds of the World", 2019 edition.
The following tags have been used to highlight some categories of occurrence. The notes of population status such as "endangered" apply to the world population and are from "Bird Checklists of the World".
Ducks, geese, and waterfowl.
Order: AnseriformesFamily: Anatidae
Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, flattened bills, and feathers that are excellent at shedding water due to an oily coating.
Pheasants, grouse, and allies.
Order: GalliformesFamily: Phasianidae
The Phasianidae are a family of terrestrial birds. In general, they are plump (although they vary in size) and have broad, relatively short wings.
Flamingos.
Order: PhoenicopteriformesFamily: Phoenicopteridae
Flamingos are gregarious wading birds, usually tall, found in both the Western and eastern Hemispheres. Flamingos filter-feed on shellfish and algae. Their oddly shaped beaks are specially adapted to separate mud and silt from the food they consume and, uniquely, are used upside-down.
Grebes.
Order: PodicipediformesFamily: Podicipedidae
Grebes are small to medium-large freshwater diving birds. They have lobed toes and are excellent swimmers and divers. However, they have their feet placed far back on the body, making them quite ungainly on land.
Pigeons and doves.
Order: ColumbiformesFamily: Columbidae
Pigeons and doves are stout-bodied birds with short necks and short slender bills with a fleshy cere.
Sandgrouse.
Order: PterocliformesFamily: Pteroclidae
Sandgrouse have small, pigeon like heads and necks, but sturdy compact bodies. They have long pointed wings and sometimes tails and a fast direct flight. Flocks fly to watering holes at dawn and dusk. Their legs are feathered down to the toes.
Bustards.
Order: OtidiformesFamily: Otididae
Bustards are large terrestrial birds mainly associated with dry open country and steppes in the Old World. They are omnivorous and nest on the ground. They walk steadily on strong legs and big toes, pecking for food as they go. They have long broad wings with "fingered" wingtips and striking patterns in flight. Many have interesting mating displays.
Cuckoos.
Order: CuculiformesFamily: Cuculidae
The family Cuculidae includes cuckoos, roadrunners and anis. These birds are of variable size with slender bodies, long tails and strong legs. The Old World cuckoos are brood parasites.
Nightjars and allies.
Order: CaprimulgiformesFamily: Caprimulgidae
Nightjars are medium-sized nocturnal birds that usually nest on the ground. They have long wings, short legs and very short bills. Most have small feet, of little use for walking, and long pointed wings. Their soft plumage is camouflaged to resemble bark or leaves.
Swifts.
Order: CaprimulgiformesFamily: Apodidae
Swifts are small birds which spend the majority of their lives flying. These birds have very short legs and never settle voluntarily on the ground, perching instead only on vertical surfaces. Many swifts have long swept-back wings which resemble a crescent or boomerang.
Rails, gallinules, and coots.
Order: GruiformesFamily: Rallidae
Rallidae is a large family of small to medium-sized birds which includes the rails, crakes, coots and gallinules. Typically they inhabit dense vegetation in damp environments near lakes, swamps or rivers. In general they are shy and secretive birds, making them difficult to observe. Most species have strong legs and long toes which are well adapted to soft uneven surfaces. They tend to have short, rounded wings and to be weak fliers.
Cranes.
Order: GruiformesFamily: Gruidae
Cranes are large, long-legged and long-necked birds. Unlike the similar-looking but unrelated herons, cranes fly with necks outstretched, not pulled back. Most have elaborate and noisy courting displays or "dances".
Thick-knees.
Order: CharadriiformesFamily: Burhinidae
The thick-knees are a group of largely tropical waders in the family Burhinidae. They are found worldwide within the tropical zone, with some species also breeding in temperate Europe and Australia. They are medium to large waders with strong black or yellow-black bills, large yellow eyes and cryptic plumage. Despite being classed as waders, most species have a preference for arid or semi-arid habitats.
Stilts and avocets.
Order: CharadriiformesFamily: Recurvirostridae
Recurvirostridae is a family of large wading birds, which includes the avocets and stilts. The avocets have long legs and long up-curved bills. The stilts have extremely long legs and long, thin, straight bills.
Oystercatchers.
Order: CharadriiformesFamily: Haematopodidae
The oystercatchers are large and noisy plover-like birds, with strong bills used for smashing or prising open molluscs.
Plovers and lapwings.
Order: CharadriiformesFamily: Charadriidae
The family Charadriidae includes the plovers, dotterels and lapwings. They are small to medium-sized birds with compact bodies, short, thick necks and long, usually pointed, wings. They are found in open country worldwide, mostly in habitats near water.
Sandpipers and allies.
Order: CharadriiformesFamily: Scolopacidae
Scolopacidae is a large diverse family of small to medium-sized shorebirds including the sandpipers, curlews, godwits, shanks, tattlers, woodcocks, snipes, dowitchers and phalaropes. The majority of these species eat small invertebrates picked out of the mud or soil. Variation in length of legs and bills enables multiple species to feed in the same habitat, particularly on the coast, without direct competition for food.
Pratincoles and coursers.
Order: CharadriiformesFamily: Glareolidae
Glareolidae is a family of wading birds comprising the pratincoles, which have short legs, long pointed wings and long forked tails, and the coursers, which have long legs, short wings and long, pointed bills which curve downwards.
Skuas and jaegers.
Order: CharadriiformesFamily: Stercorariidae
The family Stercorariidae are, in general, medium to large birds, typically with grey or brown plumage, often with white markings on the wings. They nest on the ground in temperate and arctic regions and are long-distance migrants.
Auks, murres, and puffins.
Order: CharadriiformesFamily: Alcidae
Auks are superficially similar to penguins due to their black-and-white colours, their upright posture and some of their habits, however they are not related to the penguins and differ in being able to fly. Auks live on the open sea, only deliberately coming ashore to nest.
Gulls, terns, and skimmers.
Order: CharadriiformesFamily: Laridae
Laridae is a family of medium to large seabirds, the gulls, terns, and skimmers. Gulls are typically grey or white, often with black markings on the head or wings. They have stout, longish bills and webbed feet. Terns are a group of generally medium to large seabirds typically with grey or white plumage, often with black markings on the head. Most terns hunt fish by diving but some pick insects off the surface of fresh water. Terns are generally long-lived birds, with several species known to live in excess of 30 years.
Loons.
Order: GaviiformesFamily: Gaviidae
Loons, known as divers in Europe, are a group of aquatic birds found in many parts of North America and northern Europe. They are the size of a large duck or small goose, which they somewhat resemble when swimming, but to which they are completely unrelated.
Southern storm-petrels.
Order: ProcellariiformesFamily: Oceanitidae
Southern storm petrels, are seabirds in the family Oceanitidae, part of the order Procellariiformes. These smallest of seabirds feed on planktonic crustaceans and small fish picked from the surface, typically while hovering. Their flight is fluttering and sometimes bat-like.
Northern storm-petrels.
Order: ProcellariiformesFamily: Hydrobatidae
The northern storm-petrels are relatives of the petrels and are the smallest seabirds. They feed on planktonic crustaceans and small fish picked from the surface, typically while hovering. The flight is fluttering and sometimes bat-like.
Shearwaters and petrels.
Order: ProcellariiformesFamily: Procellariidae
The procellariids are the main group of medium-sized "true petrels", characterised by united nostrils with medium septum and a long outer functional primary.
Storks.
Order: CiconiiformesFamily: Ciconiidae
Storks are large, long-legged, long-necked, wading birds with long, stout bills. Storks are mute, but bill-clattering is an important mode of communication at the nest. Their nests can be large and may be reused for many years. Many species are migratory.
Boobies and gannets.
Order: SuliformesFamily: Sulidae
The sulids comprise the gannets and boobies. Both groups are medium to large coastal seabirds that plunge-dive for fish.
Cormorants and shags.
Order: SuliformesFamily: Phalacrocoracidae
Phalacrocoracidae is a family of medium to large coastal, fish-eating seabirds that includes cormorants and shags. Plumage colouration varies, with the majority having mainly dark plumage, some species being black-and-white and a few being colourful.
Pelicans.
Order: PelecaniformesFamily: Pelecanidae
Pelicans are large water birds with a distinctive pouch under their beak. As with other members of the order Pelecaniformes, they have webbed feet with four toes.
Heron, egrets, and bitterns.
Order: PelecaniformesFamily: Ardeidae
The family Ardeidae contains the bitterns, herons and egrets. Herons and egrets are medium to large wading birds with long necks and legs. Bitterns tend to be shorter necked and more wary. Members of Ardeidae fly with their necks retracted, unlike other long-necked birds such as storks, ibises and spoonbills.
Ibises and spoonbills.
Order: PelecaniformesFamily: Threskiornithidae
Threskiornithidae is a family of large terrestrial and wading birds which includes the ibises and spoonbills. They have long, broad wings with 11 primary and about 20 secondary feathers. They are strong fliers and despite their size and weight, very capable soarers.
Osprey.
Order: AccipitriformesFamily: Pandionidae
The family Pandionidae contains only one species, the osprey. The osprey is a medium-large raptor which is a specialist fish-eater with a worldwide distribution.
Hawks, eagles, and kites.
Order: AccipitriformesFamily: Accipitridae
Accipitridae is a family of birds of prey, which includes hawks, eagles, kites, harriers and Old World vultures. These birds have powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons and keen eyesight.
Barn-owls.
Order: StrigiformesFamily: Tytonidae
Barn owls are medium to large owls with large heads and characteristic heart-shaped faces. They have long strong legs with powerful talons.
Owls.
Order: StrigiformesFamily: Strigidae
The typical owls are small to large solitary nocturnal birds of prey. They have large forward-facing eyes and ears, a hawk-like beak and a conspicuous circle of feathers around each eye called a facial disk
Hoopoes.
Order: BucerotiformesFamily: Upupidae
Hoopoes have black, white and orangey-pink colouring with a large erectile crest on their head.
Kingfishers.
Order: CoraciiformesFamily: Alcedinidae
Kingfishers are medium-sized birds with large heads, long, pointed bills, short legs and stubby tails.
Bee-eaters.
Order: CoraciiformesFamily: Meropidae
The bee-eaters are a group of near passerine birds in the family Meropidae. Most species are found in Africa but others occur in southern Europe, Madagascar, Australia and New Guinea. They are characterised by richly coloured plumage, slender bodies and usually elongated central tail feathers. All are colourful and have long downturned bills and pointed wings, which give them a swallow-like appearance when seen from afar.
Rollers.
Order: CoraciiformesFamily: Coraciidae
Rollers resemble crows in size and build, but are more closely related to the kingfishers and bee-eaters. They share the colourful appearance of those groups with blues and browns predominating. The two inner front toes are connected, but the outer toe is not.
Woodpeckers.
Order: PiciformesFamily: Picidae
Woodpeckers are small to medium-sized birds with chisel-like beaks, short legs, stiff tails and long tongues used for capturing insects. Some species have feet with two toes pointing forward and two backward, while several species have only three toes. Many woodpeckers have the habit of tapping noisily on tree trunks with their beaks.
Falcons and caracaras.
Order: FalconiformesFamily: Falconidae
Falconidae is a family of diurnal birds of prey. They differ from hawks, eagles and kites in that they kill with their beaks instead of their talons.
Old World parrots.
Order: PsittaciformesFamily: Psittaculidae
Characteristic features of parrots include a strong curved bill, an upright stance, strong legs, and clawed zygodactyl feet. Many parrots are vividly coloured, and some are multi-coloured. In size they range from to in length. Old World parrots are found from Africa east across south and southeast Asia and Oceania to Australia and New Zealand.
Vireos, shrike-babblers, and erpornis.
Order: PasseriformesFamily: Vireonidae
The vireos are a group of small to medium-sized passerine birds restricted to the New World and Southeast Asia.
Old World orioles.
Order: PasseriformesFamily: Oriolidae
The Old World orioles are colourful passerine birds. They are not related to the New World orioles.
Shrikes.
Order: PasseriformesFamily: Laniidae
Shrikes are passerine birds known for their habit of catching other birds and small animals and impaling the uneaten portions of their bodies on thorns. A shrike's beak is hooked, like that of a typical bird of prey.
Crows, jays, and magpies.
Order: PasseriformesFamily: Corvidae
The family Corvidae includes crows, ravens, jays, choughs, magpies, treepies, nutcrackers and ground jays. Corvids are above average in size among the Passeriformes, and some of the larger species show high levels of intelligence.
Tits, chickadees, and titmice.
Order: PasseriformesFamily: Paridae
The Paridae are mainly small stocky woodland species with short stout bills. Some have crests. They are adaptable birds, with a mixed diet including seeds and insects.
Penduline-tits.
Order: PasseriformesFamily: Remizidae
The penduline-tits are a group of small passerine birds related to the true tits. They are insectivores.
Larks.
Order: PasseriformesFamily: Alaudidae
Larks are small terrestrial birds with often extravagant songs and display flights. Most larks are fairly dull in appearance. Their food is insects and seeds.
Bearded reedling.
Order: PasseriformesFamily: Panuridae
This species, the only one in its family, is found in reed beds throughout temperate Europe and Asia.
Cisticolas and allies.
Order: PasseriformesFamily: Cisticolidae
The Cisticolidae are warblers found mainly in warmer southern regions of the Old World. They are generally very small birds of drab brown or grey appearance found in open country such as grassland or scrub.
Reed warblers and allies.
Order: PasseriformesFamily: Acrocephalidae
The members of this family are usually rather large for "warblers". Most are rather plain olivaceous brown above with much yellow to beige below. They are usually found in open woodland, reedbeds, or tall grass. The family occurs mostly in southern to western Eurasia and surroundings, but it also ranges far into the Pacific, with some species in Africa.
Grassbirds and allies.
Order: PasseriformesFamily: Locustellidae
Locustellidae are a family of small insectivorous songbirds found mainly in Eurasia, Africa, and the Australian region. They are smallish birds with tails that are usually long and pointed, and tend to be drab brownish or buffy all over.
Swallows.
Order: PasseriformesFamily: Hirundinidae
The family Hirundinidae is adapted to aerial feeding. They have a slender streamlined body, long pointed wings and a short bill with a wide gape. The feet are adapted to perching rather than walking, and the front toes are partially joined at the base.
Leaf warblers.
Order: PasseriformesFamily: Phylloscopidae
Leaf warblers are a family of small insectivorous birds found mostly in Eurasia and ranging into Wallacea and Africa. The species are of various sizes, often green-plumaged above and yellow below, or more subdued with greyish-green to greyish-brown colours.
Bush warblers and allies.
Order: PasseriformesFamily: Scotocercidae
The members of this family are found throughout Africa, Asia, and Polynesia. Their taxonomy is in flux, and some authorities place some genera in other families.
Long-tailed tits.
Order: PasseriformesFamily: Aegithalidae
Long-tailed tits are a group of small passerine birds with medium to long tails. They make woven bag nests in trees. Most eat a mixed diet which includes insects.
Sylviid warblers, parrotbills, and allies.
Order: PasseriformesFamily: Sylviidae
The family Sylviidae is a group of small insectivorous passerine birds. They mainly occur as breeding species, as the common name implies, in Europe, Asia and, to a lesser extent, Africa. Most are of generally undistinguished appearance, but many have distinctive songs.
Kinglets.
Order: PasseriformesFamily: Regulidae
The kinglets, also called crests, are a small group of birds often included in the Old World warblers, but frequently given family status because they also resemble the titmice.
Wallcreeper.
Order: PasseriformesFamily: Tichodromidae
The wallcreeper is a small bird related to the nuthatch family, which has stunning crimson, grey and black plumage.
Nuthatches.
Order: PasseriformesFamily: Sittidae
Nuthatches are small woodland birds. They have the unusual ability to climb down trees head first, unlike other birds which can only go upwards. Nuthatches have big heads, short tails and powerful bills and feet.
Treecreepers.
Order: PasseriformesFamily: Certhiidae
Treecreepers are small woodland birds, brown above and white below. They have thin pointed down-curved bills, which they use to extricate insects from bark. They have stiff tail feathers, like woodpeckers, which they use to support themselves on vertical trees.
Wrens.
Order: PasseriformesFamily: Troglodytidae
The wrens are mainly small and inconspicuous except for their loud songs. These birds have short wings and thin down-turned bills. Several species often hold their tails upright. All are insectivorous.
Dippers.
Order: PasseriformesFamily: Cinclidae
Dippers are a group of perching birds whose habitat includes aquatic environments in the Americas, Europe and Asia. They are named for their bobbing or dipping movements.
Starlings.
Order: PasseriformesFamily: Sturnidae
Starlings are small to medium-sized passerine birds. Their flight is strong and direct and they are very gregarious. Their preferred habitat is fairly open country. They eat insects and fruit. Plumage is typically dark with a metallic sheen.
Mockingbirds and thrashers.
Order: PasseriformesFamily: Mimidae
The mimids are a family of passerine birds which includes thrashers, mockingbirds, tremblers, and the New World catbirds. These birds are notable for their vocalization, especially their remarkable ability to mimic a wide variety of birds and other sounds heard outdoors. The species tend towards dull grays and browns in their appearance.
Thrushes and allies.
Order: PasseriformesFamily: Turdidae
The thrushes are a group of passerine birds that occur mainly in the Old World. They are plump, soft plumaged, small to medium-sized insectivores or sometimes omnivores, often feeding on the ground. Many have attractive songs.
Old World flycatchers.
Order: PasseriformesFamily: Muscicapidae
Old World flycatchers are a large group of small passerine birds native to the Old World. They are mainly small arboreal insectivores. The appearance of these birds is highly varied, but they mostly have weak songs and harsh calls.
Waxwings.
Order: PasseriformesFamily: Bombycillidae
The waxwings are a group of birds with soft silky plumage and unique red tips to some of the wing feathers. In the Bohemian and cedar waxwings, these tips look like sealing wax and give the group its name. These are arboreal birds of northern forests. They live on insects in summer and berries in winter.
Accentors.
Order: PasseriformesFamily: Prunellidae
The accentors are in the only bird family, Prunellidae, which is completely endemic to the Palearctic. They are small, fairly drab species superficially similar to sparrows.
Old World sparrows.
Order: PasseriformesFamily: Passeridae
Old World sparrows are small passerine birds. In general, sparrows tend to be small, plump, brown or grey birds with short tails and short powerful beaks. Sparrows are seed eaters, but they also consume small insects.
Wagtails and pipits.
Order: PasseriformesFamily: Motacillidae
Motacillidae is a family of small passerine birds with medium to long tails. They include the wagtails, longclaws and pipits. They are slender, ground feeding insectivores of open country.
Finches, euphonias, and allies.
Order: PasseriformesFamily: Fringillidae
Finches are seed-eating passerine birds, that are small to moderately large and have a strong beak, usually conical and in some species very large. All have twelve tail feathers and nine primaries. These birds have a bouncing flight with alternating bouts of flapping and gliding on closed wings, and most sing well.
Longspurs and snow buntings.
Order: PasseriformesFamily: Calcariidae
The Calcariidae are a group of passerine birds which had been traditionally grouped with the New World sparrows, but differ in a number of respects and are usually found in open grassy areas.
Old World buntings.
Order: PasseriformesFamily: Emberizidae
The emberizids are a large family of passerine birds. They are seed-eating birds with distinctively shaped bills. Many emberizid species have distinctive head patterns.
New World sparrows.
Order: PasseriformesFamily: Passerellidae
The New World sparrows (or American sparrows) are a large family of seed-eating passerine birds with distinctively finch-like bills.
Troupials and allies.
Order: PasseriformesFamily: Icteridae
Icterids make up a family of small- to medium-sized, often colorful, New-World passerine birds. Most species have black as a predominant plumage color, often enlivened by yellow, orange or red. The species in the family vary widely in size, shape, behavior and coloration.
New World warblers.
Order: PasseriformesFamily: Parulidae
The New World warblers are a group of small often colorful passerine birds restricted to the New World. Most are arboreal, but some are more terrestrial. Most members of this family are insectivores.
Cardinals and allies.
Order: PasseriformesFamily: Cardinalidae
The cardinals are a family of robust, seed-eating birds with strong bills. They are typically associated with open woodland. The sexes usually have distinct plumages.


Leptobrachium hainanense

Leptobrachium hainanense, the Hainan pseudomoustache toad, is a species of amphibian in the family Megophryidae. It is endemic to the mountains of central and southwestern Hainan Island, China. Before being recognized as a separate species, it was confused with "Leptobrachium hasseltii".
"Leptobrachium hainanense" is an uncommon species inhabiting evergreen broadleaf forests and breeding in hill streams. It is threatened by habitat loss and degradation, and is also locally collected for food. Males grow to snout-vent length of about . Tadpoles are about in length.


Hermissenda opalescens

Hermissenda opalescens is a species of brightly coloured sea slug or nudibranch, a marine gastropod mollusc in the family Facelinidae.
This species is commonly known as the "opalescent sea slug."
Distribution.
This nudibranch was described from San Diego, California, United States. It has been reported from Northern California, to Punta Eugenia, Mexico. Its distribution overlaps with "Hermissenda crassicornis" in Northern California and this latter species is found north to Alaska. These two species were routinely treated as a single species during the last 90 years.
The species has also been observed in Bahia de los Angeles, Gulf of California.
Habitat.
This sea slug is found in various habitats, including the intertidal zone of rocky shores, but also in bays and estuaries.
Description.
The species grows to be about 50 mm, or about 2 inches.
This slug has been treated as a model organism and used in studies into classical conditioning, memory consolidation and associative learning, the structure of neural circuits and neural physiology. It has also been used to investigate ultrastructure and anatomy, larval and reproductive ecology, behavioral ecology and pharmacology and toxicology including studies into Beta thymosins. Unfortunately these studies did not differentiate between the three species of "Hermissenda".
Life habits.
This nudibranch feeds on hydroids and other marine organisms such as ascidians and sea anemones. It sometimes attacks other nudibranchs, and will eat smaller specimens of its own species. It is host to the ectoparasites "Halicyclops thysanotus" and "Hemicyclops thysanotus ".


Heliophanus acutissimus

Heliophanus acutissimus is a jumping spider species in the genus "Heliophanus". It was first described by Wanda Wesołowska in 1986 and is found in Algeria.


Amphisbaena crisae

Amphisbaena crisae is a species of worm lizards found in Brazil.


Nothogomphodon

Nothogomphodon is a genus of therocephalian therapsids. It is classified within the family Bauriidae and placed within its own subfamily, Nothogomphodontinae.
Description.
"Nothogomphodon" was unusual among therocephalians for its sectorial dentition, a feature it shared with cynodonts and which would have allowed it to shear meat more effectively.
Species.
There are two described species of "Nothogomphodon": "N. danilovi" and "N. sanjiaoensis". "N. danilovi" is the types species and is known from Russia, while "N. sanjiaoensis" is known from China. "N. sanjiaoensis" can be distinguished from "N. danilovi" by its ovate canine base and distinct gap between the canine and the first postcanine tooth.


Delminichthys jadovensis

Delminichthys jadovensis is a species of cyprinid fish.
It is found only in Croatia, in the karst region. First scientifically described in 2002, "P. jadovensis" is found at only one location, a stream in the Jadova River. The populations seems to be declining even here, and considered critically endangered.


Abronia smithi

Abronia smithi is a species of lizard in the family Anguidae. Known by the common name Smith's arboreal alligator lizard, the species is endemic to the state of Chiapas in Mexico.
Taxonomy and etymology.
"A. smithi" was described in 1993 by Jonathan A. Campbell and Darrel Frost, and named after the American herpetologist Hobart Muir Smith.
Habitat and geographic range.
"A. smithi" is an arboreal species which lives in the canopies of large trees in the cloud forests of the Sierra Madre de Chiapas. Its elevational range is above sea level.
Reproduction.
"A. smithi" is viviparous.
Conservation status.
"A. smithi" is only known to exist in a few localities in Chiapas. It is uncommon and may be threatened by deforestation, but it occurs in protected habitat, including the El Triunfo Biosphere Reserve.


Allobates wayuu

Allobates wayuu is a species of frog in the family Aromobatidae. It is endemic to the Serranía de Macuira in La Guajira Department, Colombia, and is only known from its type locality in the Macuira National Natural Park.
Etymology.
The specific name "wayuu" refers to Wayuu people, an ethnic group from the extreme north of Colombia.
Description.
Males measure and females in snout–vent length. The snout is nearly ovoid in dorsal view and anteriorly inclined in lateral view. The tympanum is partly concealed. The canthus rostralis is acute but not prominent. The fingers and toes bear expanded discs; fingers are unwebbed whereas toes have some webbing. Skin is smooth. The body is brown while the limbs are creme; the hind limbs have brown bars. The sides are dark brown and have dorsolateral bands. The lips are cream. The belly is creamy with some brownish-gray spots.
Habitat and conservation.
It inhabits tropical forest with dry vegetation, including secondary forest, at elevations of above sea level. The eggs are deposited on the forest floor. The male carries the hatched tadpoles to streams and ponds where they complete their development. The known population is within the Parque Nacional Natural Macuira.


Holcocera calthae

Holcocera calthae is a moth in the family Blastobasidae which is endemic to Costa Rica.


Micropterix algeriella

Micropterix algeriella is a species of moth belonging to the family Micropterigidae. It was described by Émile Louis Ragonot in 1889 and is endemic to Algeria.


Tetracha coerulea

Tetracha coerulea is a species of tiger beetle in the subfamily Cicindelinae that was described by Hippolyte Lucas in 1857, and is endemic to Bolivia.


Parachondrostoma arrigonis

Parachondrostoma arrigonis is a species of cyprinid fish endemic to Spain only found in the Júcar River basin. Its natural habitat is rivers.
It is threatened by habitat loss.


Black-winged cuckooshrike

The black-winged cuckooshrike or lesser grey cuckooshrike or dark grey cuckooshrike ("Lalage melaschistos") is a species of cuckooshrike found in South to Southeast Asia. Despite the name, they (cuckooshrikes) are unrelated to shrikes or cuckoos. They have broad based bills with grey upper parts, black wings, white vent, graduated white-tipped tails, black bills and legs. Females are overall lighter in all taxa.
Distribution.
They breed in summer in mountains from 300–2450 meters and migrate altitudinally or south in winter. It is distributed from Northeast Pakistan through the lower Himalayan region (Uttarakhand, Nepal, Arunachal Pradesh and into the hills of NE Myanmar continuing to China and Southeast Asia. It winters in the foothills, occasionally longer distances south west to northern parts of peninsular India and east to Orissa, Bengal and Bangladesh, but may travel as far south as Kerala).
Habitat: Breeds in deciduous and broad-leaved evergreen forest but winters in open forest, groves, singly or in pairs. They are also known to join mixed feeding parties. Their diet consists mainly of caterpillars, beetles and other bugs.
Description.
A medium-sized, dark cuckoo-shrike with unbarred, grey underparts.


Fauna of Australia

The fauna of Australia consists of a huge variety of animals; some 83% of mammals, 89% of reptiles, 90% of fish and insects and 93% of amphibians that inhabit the continent are endemic to Australia. This high level of endemism can be attributed to the continent's long geographic isolation, tectonic stability, and the effects of an unusual pattern of climate change on the soil and flora over geological time. A unique feature of Australia's fauna is the relative scarcity of native placental mammals. Consequently, the marsupials – a group of mammals that raise their young in a pouch, including the macropods, possums and dasyuromorphs – occupy many of the ecological niches placental animals occupy elsewhere in the world. Australia is home to two of the five known extant species of monotremes and has numerous venomous species, which include the platypus, spiders, scorpions, octopus, jellyfish, molluscs, stonefish, and stingrays. Uniquely, Australia has more venomous than non-venomous species of snakes.
The settlement of Australia by Indigenous Australians between 48,000 and 70,000 years ago (research in 2011 using DNA suggesting an arrival around 50,000 years ago), and by Europeans from 1788, has significantly affected the fauna. Hunting, the introduction of non-native species, and land-management practices involving the modification or destruction of habitats have led to numerous extinctions. Some historical examples include the paradise parrot, pig-footed bandicoot and the broad-faced potoroo. Unsustainable land use still threatens the survival of many species. To target threats to the survival of its fauna, Australia has passed wide-ranging federal and state legislation and established numerous protected areas.
Origins and history.
Both geologic and climatic events helped to make Australia's fauna unique. Australia was once part of the southern supercontinent Gondwana, which also included South America, Africa, India and Antarctica. Gondwana began to break up 140 million years ago (MYA); 50 MYA Australia separated from Antarctica and was relatively isolated until the collision of the Indo-Australian Plate with Asia in the Miocene era 5.3 MYA. The establishment and evolution of the present-day fauna was apparently shaped by the unique climate and the geology of the continent. As Australia drifted, it was, to some extent, isolated from the effects of global climate change. The unique fauna that originated in Gondwana, such as the marsupials, survived and adapted in Australia.
After the Miocene, fauna of Asian origin were able to establish themselves in Australia. The Wallace Line—the hypothetical line separating the zoogeographical regions of Asia and Australasia—marks the tectonic boundary between the Eurasian and Indo-Australian plates. This continental boundary prevented the formation of land bridges and resulted in a distinct zoological distribution, with limited overlap, of most Asian and Australian fauna, with the exception of birds. Following the emergence of the circumpolar current in the mid-Oligocene era (some 15 MYA), the Australian climate became increasingly arid, giving rise to a diverse group of arid-specialised organisms, just as the wet tropical and seasonally wet areas gave rise to their own uniquely adapted species.
Mammals.
Australia has a rich mammalian fossil history, as well as a variety of extant mammalian species, dominated by the marsupials, currently however there is limited taxonomic research into Australia's mammals. The fossil record shows that monotremes have been present in Australia since the Early Cretaceous 145–99 MYA, and that marsupials and placental mammals date from the Eocene 56–34 MYA, when modern mammals first appeared in the fossil record. Although terrestrial marsupials and placental mammals did coexist in Australia in the Eocene, only the marsupials have survived to the present. Non-volant placental mammals made their reappearance in Australia in the Miocene, when Australia moved closer to Indonesia, and rodents started to appear reliably in the Early Pliocene fossil record. The marsupials evolved to fill specific ecological niches, and in many cases they are physically similar to the placental mammals in Eurasia and North America that occupy similar niches, a phenomenon known as convergent evolution. For example, the top predator in Australia, the Tasmanian tiger, bore a striking resemblance to canids. Gliding possums and flying squirrels have similar adaptations enabling their arboreal lifestyle; and the numbat and anteaters are both digging insectivores. For the most part, mammals are not a highly visible part of the faunal landscape, as most species are nocturnal and many arboreal.
Monotremes and marsupials.
Two of the five living species of monotreme occur in Australia: the platypus and the short-beaked echidna. The monotremes differ from other mammals in their methods of reproduction; in particular, they lay eggs instead of giving birth to live young. The platypus—a venomous, egg-laying, duck-billed amphibious mammal—is considered to be one of the strangest creatures in the animal kingdom. When it was first presented by Joseph Banks to English naturalists it was thought to be so strange that it was a cleverly created hoax. The short-beaked echidna is similarly strange, covered in hairy spikes with a tubular snout in the place of a mouth, and a tongue that can move in and out of the snout about 100 times a minute to capture termites.
Australia has the world's largest and most diverse range of marsupials. Marsupials are characterised by the presence of a pouch in which they rear their young. The carnivorous marsupials—order Dasyuromorphia—are represented by two surviving families: the Dasyuridae with 51 members, and the Myrmecobiidae with the numbat as its sole surviving member. The Tasmanian tiger was the largest Dasyuromorphia and the last living specimen of the family Thylacinidae died in captivity in 1936. The world's largest surviving carnivorous marsupial is the Tasmanian devil; it is the size of a small dog and can hunt, although it is mainly a scavenger. It became extinct on the mainland some 600 years ago, and is now found only in Tasmania. There are four species of quoll, or "native cat", all of which are threatened species. The eastern quoll for example is believed to have been extinct on the mainland since the 1960s, though conservation efforts are under way to reintroduce the secretive species to the mainland. The remainder of the Dasyuridae are referred to as "marsupial mice"; most weigh less than 100 g. There are two species of marsupial mole—order Notoryctemorphia—that inhabit the deserts of Western Australia. These rare, blind and earless carnivorous creatures spend most of their time underground; little is known about them.
The bandicoots and bilbies—order Peramelemorphia—are marsupial omnivores. There are seven species in Australia, most of which are endangered. These small creatures share several characteristic physical features: a plump, arch-backed body with a long, delicately tapering snout, large upright ears, long, thin legs, and a thin tail. The evolutionary origin of this group is unclear, because they share characteristics from both carnivorous and herbivorous marsupials.
Herbivorous marsupials are classified in the order Diprotodontia, and further into the suborders Vombatiformes and Phalangerida. The Vombatiformes include the koala and the three species of wombat. One of Australia's best-known marsupials, the koala is an arboreal species that feeds on the leaves of various species of eucalyptus. Wombats, on the other hand, live on the ground and feed on grasses, sedges and roots. Wombats use their rodent-like front teeth and powerful claws to dig extensive burrow systems; they are mainly crepuscular and nocturnal.
The Phalangerida includes six families and 26 species of possum and three families with 53 species of macropod. The possums are a diverse group of arboreal marsupials and vary in size from the little pygmy possum, weighing just 7 g, to the cat-sized common ringtail and brushtail possums. The sugar and squirrel gliders are common species of gliding possum, found in the eucalypt forests of eastern Australia, while the feathertail glider is the smallest glider species. The gliding possums have membranes called "patagia" that extend from the fifth finger of their forelimb back to the first toe of their hind foot. These membranes, when outstretched, allow them to glide between trees.
The macropods are divided into three families: the Hypsiprymnodontidae, with the musky rat-kangaroo as its only member; the Potoroidae, with 11 species; and the Macropodidae, with 45 species. Macropods are found in all Australian environments except alpine areas. The Potoroidae include the bettongs, potaroos and rat-kangaroos, small species that make nests and carry plant material with their tails. The Macropodiae include kangaroos, wallabies and associated species; size varies widely within this family. Most macropods have large hind legs and long, narrow hind feet, with a distinctive arrangement of four toes, and powerfully muscled tails, which they use to hop around. The musky rat-kangaroo is the smallest macropod and the only species that is quadrupedal not bipedal, while the male red kangaroo is the largest, reaching a height of about 2 m and weighing up to 85 kg.
Placental mammals.
Australia has indigenous placental mammals from two orders: the bats—order Chiroptera—represented by six families; and the mice and rats—order Rodentia, family Muridae. There are only two endemic genera of bats, although 7% of the world's bat species live in Australia. Rodents first arrived in Australia 5–10 MYA, undergoing a wide radiation to produce the species collectively known as the "old endemic" rodents. The old endemics are represented by 14 extant genera. A million years ago, the rat entered Australia from New Guinea and evolved into seven species of "Rattus", collectively called the "new endemics".
Since human settlement many additional placental mammals have been introduced to Australia and are now feral. The first placental mammal introduced to Australia was the dingo. Fossil evidence suggests that people from the north brought the dingo to Australia about 5000 years ago. When Europeans settled Australia they intentionally released many species into the wild including the red fox, brown hare, and the European rabbit. Other domestic species have escaped and over time have produced wild populations including the banteng, cat, fallow deer, red deer, sambar deer, rusa deer, chital, hog deer, horse, donkey, pig, goat, water buffalo, and the camel. Only three species of non-native placental mammal were not deliberately introduced to Australia: the house mouse, black rat and the brown rat.
Forty-six marine mammals from the order Cetacea are found in Australian coastal waters. Since the majority of these species have global distribution, some authors do not consider them to be Australian species. There are eleven species of baleen whale present; humpback whales, southern right whales, dwarf minke whales and pygmy blue whales are more commonly observed. There are 37 species of toothed whale, which include all six genera of the family Ziphiidae, and 21 species of oceanic dolphin, including the Australian snubfin dolphin, a species first described in 2005. Some oceanic dolphins, such as the orca, can be found in all waters around the continent; others, such as the Irrawaddy dolphin, are confined to the warm northern waters. The dugong is an endangered marine species that inhabits the waters of north-eastern and north-western Australia, particularly the Torres Strait. It can grow up to 3 m long and weigh as much as 400 kg. The dugong is the only herbivorous marine mammal in Australia, feeding on sea grass in coastal areas. The destruction of sea grass beds is a threat to the survival of this species. Eleven species of seal—family Pinnipedia—live off the southern coast.
Birds.
Australia and its territories are home to around 800 species of bird; 45% of these are endemic to Australia. The fossil record of birds in Australia is patchy; however, there are records of the ancestors of contemporary species as early as the Late Oligocene. Birds with a Gondwanan history include the flightless ratites (the emu and southern cassowary), megapodes (the malleefowl and Australian brush-turkey), and a huge group of endemic parrots, order Psittaciformes. Australian parrots comprise a sixth of the world's parrots, including many cockatoos and galahs. The kookaburra is the largest species of the kingfisher family, known for its call, which sounds uncannily like loud, echoing human laughter.
The passerines of Australia, also known as songbirds or perching birds, include wrens, robins, the magpie group, thornbills, pardalotes, the huge honeyeater family, treecreepers, lyrebirds, birds of paradise and bowerbirds. The satin bowerbird has attracted the interest of evolutionary psychologists; it has a complex courtship ritual in which the male creates a bower filled with blue, shiny items to woo mates.
Relatively recent colonists from Eurasia are swallows, larks, thrushes, cisticolas, sunbirds, and some raptors, including the large wedge-tailed eagle. A number of bird species have been introduced by humans; some, like the European goldfinch and greenfinch, coexist happily with Australian species, while others, such as the common starling, common blackbird, house sparrow and Indian mynah, are destructive of some native bird species and thus destabilise the native ecosystem.
About 200 species of seabird live on the Australian coast, including many species of migratory seabird. Australia is at the southern end of the East Asian-Australasian Flyway for migratory water birds, which extends from Far-East Russia and Alaska through Southeast Asia to Australia and New Zealand. About two million birds travel this route to and from Australia each year. One very common large seabird is the Australian pelican, which can be found in most waterways in Australia. The little penguin is the only species of penguin that breeds on mainland Australia.
Amphibians and reptiles.
Australia has four families of native frogs and one introduced toad, the cane toad. In 1935 the cane toad was introduced to Australia in a failed attempt to control pests in sugarcane crops. It has since become a devastating pest, spreading across northern Australia. As well as competing with native insectivores for food, the cane toad produces a venom that is toxic to native fauna, as well as to humans. The Myobatrachidae, or southern frogs, are Australia's largest group of frogs, with 112 species classified into anywhere from 17 to 22 genera. A notable member of this group is the colourful and endangered Corroboree frog. The tree frogs, from family Hylidae, are common in high rainfall areas on the north and east coasts; there are 77 Australian species from three genera. The 18 species from two genera of the Microhylidae frogs are restricted to the rainforests of northern Australia and nearby habitats; the smallest species, the scanty frog, is from this family. There is a single species from the world's dominant frog group, family Ranidae – the Australian wood frog – which only occurs in the Queensland rainforests. As elsewhere, there has been a precipitous decline in Australia's frog populations in recent years. Although the full reasons for the decline are uncertain, it can be at least partly attributed to the fatal amphibian fungal disease chytridiomycosis. Another theory for the decline might be, as research shows, that species from the Southern Hemisphere are on average 4.6 million years old, compared to an average 2.9 million years old for the Northern Hemisphere: Researchers believe this age difference is because of the history of severe ice ages in the Northern Hemisphere, which may drive older species to extinction.
Australia has two species of crocodile. The saltwater crocodile, known colloquially as the "salty", is the largest living crocodile species; reaching over 7 m, and weighing over 1,000 kg, they can and do kill people. They live on the coast and in the freshwater rivers and wetlands of northern Australia, and they are farmed for their meat and leather. Freshwater crocodiles, found only in northern Australia, are not considered dangerous to humans.
The Australian coast is visited by six species of sea turtle: the flatback, green sea, hawksbill, olive ridley, loggerhead and the leatherback sea turtles; all are protected in Australian waters. There are 35 species of Australian freshwater turtles from eight genera of the family Chelidae. The pig-nosed turtle is the only Australian turtle not of that family. Australia is the only continent without any living species of land tortoises of the Testudinoidea superfamily besides Antartica.
Australia is the only continent where venomous snakes outnumber their non-venomous cousins. Australian snakes belong to seven families. Of these, the most venomous species, including the fierce snake, eastern brown snake, taipan and eastern tiger snake are from the family Elapidae. Of the 200 species of elapid, 106 are found in Australia and 86 are found only in Australia. Thirty-three sea snakes from family Hydrophiidae inhabit Australia's northern waters; many are extremely venomous. Two species of sea snake from the Acrochordidae also occur in Australian waters. Australia has only 11 species from the world's most significant snake family Colubridae; none are endemic, and they are considered to be relatively recent arrivals from Asia. There are 15 python species and 45 species of insectivorous blind snake.
There are more than 700 species of lizards in Australia with representatives of five families. There are over 130 species in 20 genera of gecko found throughout the Australian continent. The Pygopodidae is a family of limbless lizards endemic to the Australian region; all 39 species from seven genera occur in Australia. The Agamidae or dragon lizards are represented by 70 species in 14 genera, including the thorny devil, bearded dragon and frill-necked lizard. There are 30 species of monitor lizard, family Varanidae, in Australia, where they are commonly known as goannas. The largest Australian monitor is the perentie, which can reach up to 2 m in length. There are about 450 species of skink from more than 40 genera, comprising more than 50% of the total Australian lizard fauna; this group includes the blue-tongued lizards.
Fish.
More than 5000 species of fish inhabit Australia's waterways; of these, 24% are endemic. However, because of the relative scarcity of freshwater waterways, Australia has only about 300 species of freshwater fish. Two families of freshwater fish have ancient origins: the arowana or bonytongues, and the Queensland lungfish. The Queensland lungfish is the most primitive of the lungfish, having evolved before Australia separated from Gondwana. One of the smallest freshwater fish, peculiar to the southwest of Western Australia, is the salamanderfish, which can survive desiccation in the dry season by burrowing into mud. Other families with a potentially Gondwanan origin include the Retropinnidae, Galaxiidae, Aplochitonidae and Percichthyidae. Apart from the ancient freshwater species, 70% of Australia's freshwater fish have affinities with tropical Indo-Pacific marine species that have adapted to freshwater. These species include freshwater lampreys, herrings, catfish, rainbowfish, and some 50 species of gudgeon, including the sleepy cod. Native freshwater game fish include the barramundi, Murray cod, and golden perch. Two species of endangered freshwater shark are found in the Northern Territory.
Several exotic freshwater fish species, including brown, brook and rainbow trout, Atlantic and Chinook salmon, redfin perch, common carp, and mosquitofish, have been introduced to Australian waterways. The mosquitofish and is a particularly aggressive species known for harassing and nipping the fins of other fish. It has been linked to declines and localised extirpations of several small native fish species. The introduced trout species have had serious negative impacts on a number of upland native fish species including trout cod, Macquarie perch and mountain galaxias species as well as other upland fauna such as the spotted tree frog. The common carp is strongly implicated in the dramatic loss in waterweed, decline of small native fish species and permanently elevated levels of turbidity in the Murray-Darling Basin of south west Australia.
Most of Australia's fish species are marine, and 75% live in tropical marine environments. This is partly due to Australia's huge marine territory, covering 9 million km2. Groups of interest include the moray eels and squirrelfish, as well as the pipefish and seahorses, whose males incubate their partner's eggs in a specialised pouch. There are 80 species of grouper in Australian waters, including one of the world's biggest bony fish, the giant grouper, which can grow as large as 2.7 m and weigh up to 400 kg. The trevally, a group of 50 species of silver schooling fish, and the snappers are popular species for commercial fishing. The Great Barrier Reef supports a huge variety of small- and medium-sized reef fish, including the damselfish, butterflyfish, angelfish, gobies, cardinalfish, wrassees, triggerfish and surgeonfish. There are several venomous fish, among them several species of stonefish and pufferfish and the red lionfish, all of which have toxins that can kill humans. There are 11 venomous species of stingray, the largest of which is the smooth stingray. The barracudas are one of the reef's largest species. However, large reef fish should not be eaten for fear of ciguatera poisoning.
Sharks inhabit all the coastal waters and estuarine habitats of Australia's coast. There are 166 species, including 30 species of requiem shark, 32 of catshark, six of wobbegong shark, and 40 of dogfish shark. There are three species from the family Heterodontidae: the Port Jackson shark, the zebra bullhead shark and the crested bullhead shark. In 2004, there were 12 unprovoked shark attacks in Australia, of which two were fatal. Only 3 species of shark pose a significant threat to humans: the bull shark, the tiger shark and the great white shark. Some popular beaches in Queensland and New South Wales are protected by shark netting, a method that has reduced the population of both dangerous and harmless shark species through accidental entanglement. The overfishing of sharks has also significantly reduced shark numbers in Australian waters, and several species are now endangered. A megamouth shark was found on a Perth beach in 1988; very little is known about this species, but this discovery may indicate the presence of the species in Australian coastal waters.
Invertebrates.
Of the estimated 200,000 animal species in Australia, about 96% are invertebrates. While the full extent of invertebrate diversity is uncertain, 90% of insects and molluscs are considered endemic. Invertebrates occupy many ecological niches and are important in all ecosystems as decomposers, pollinators, and food sources. The largest group of invertebrates is the insects, comprising 75% of Australia's known species of animals. The most diverse insect orders are the Coleoptera, with 28,200 species of beetles and weevils, the Lepidoptera with 20,816 species including butterflies and moths, and around 14,800 species of Hymenoptera, including the ants, bees and wasps. Order Diptera, which includes the flies and mosquitoes, comprises 7,786 species. Order Hemiptera, including bugs, aphids and hoppers, comprises 5,650 species; and there are 2,827 species of order Orthoptera, including grasshoppers, crickets and katydids. Introduced species that pose a significant threat to native species include the European wasp, the red fire ant, the yellow crazy ant and feral honeybees which compete with native bees.
Australia has a wide variety of arachnids, including 78 spider families with 79 species of spider familiar enough to have common names. There are numerous highly venomous species, including the notorious Sydney funnel-web and allied mygalomorphs, whose bites can be deadly. The redback spider was thought to be deadly but redback bites are no longer thought to be life-threatening, as the lack of deaths since 1956 was thought to be due to the development of an anti-venom which has since been shown to be no better than placebo[126] [127]. There are thousands of species of mites and ticks from the subclass Acari. Australia also has at least 150 species of pseudoscorpion with an estimated 550 more waiting to be described, and at least 17 scorpion genera with 120 species.
In the Annelida (sub)class Oligochaeta there are many families of aquatic worms, and for native terrestrial worms: the Enchytraeidae (pot worms) and the "true" earthworms in families Acanthodrilidae, Octochaetidae and Megascolecidae. The latter includes the world's largest earthworm, the giant Gippsland earthworm, found only in Gippsland, Victoria. On average they reach 80 cm in length, but specimens up to 3.7 m in length have been found.
The large family Parastacidae includes 124 species of Australian freshwater crayfish. These include the world's smallest crayfish, the swamp crayfish, which does not exceed 30 mm in length, and the world's largest crayfish, the Tasmanian giant freshwater crayfish, measuring up to 76 cm long and weighing 4.5 kg. The crayfish genus "Cherax" includes the common yabby, in addition to the farmed species marron and Queensland red claw. Species from the genus "Engaeus", commonly known as the land crayfish, are also found in Australia. "Engaeus" species are not entirely aquatic, because they spend most of their lives living in burrows. Australia has seven species of freshwater crab from the genus "Austrothelphusa". These crabs live burrowed into the banks of waterways and can plug their burrows, surviving through several years of drought. The extremely primitive freshwater mountain shrimp, found only in Tasmania, are a unique group, resembling species found in the fossil record from 200 MYA.
A huge variety of marine invertebrates are found in Australian waters, with the Great Barrier Reef an important source of this diversity. Families include the Porifera or sea sponges, the Cnidaria (includes the jellyfish, corals and sea anemones, comb jellies), the Echinodermata (includes the sea urchins, sea stars, brittle stars, sea cucumbers, the lamp shells) and the Mollusca (includes snails, slugs, limpets, squid, octopus, cockles, oysters, clams, and chitons). Venomous invertebrates include the box jellyfish, the blue-ringed octopus, and ten species of cone snail, which can cause respiratory failure and death in humans. The crown-of-thorns starfish usually inhabits the reef at low densities. However, under conditions that are not yet well understood, they can reproduce to reach an unsustainable population density when coral is devoured at a rate faster than it can regenerate. This presents a serious reef management issue. Other problematic marine invertebrates include the native species purple sea urchin and the white urchin, which have been able to take over marine habitats and form urchin barrens due to the over harvesting of their natural predators which include abalone and rock lobster. Introduced invertebrate pests include the Asian mussel, New Zealand green-lipped mussel, black-striped mussel and the northern Pacific seastar, all of which displace native shellfish.
There are many unique marine crustaceans in Australian waters. The best-known class, to which all the edible species of crustacean belong, is Malacostraca. The warm waters of northern Australia are home to many species of decapod crustaceans, including crabs, false crabs, hermit crabs, lobsters, shrimps, and prawns. The peracarids, including the amphipods and isopods, are more diverse in the colder waters of southern Australia. Less-well-known marine groups include the classes Remipedia, Cephalocarida, Branchiopoda, Maxillopoda (which includes the barnacles, copepods and fish lice), and the Ostracoda. Notable species include the Tasmanian giant crab, the second largest crab species in the world, found in deep water, and weighing up to 13 kg, and the Australian spiny lobsters, such as the western rock lobster, which are distinct from other lobster species as they do not have claws.
Invasive species.
Introduction of exotic fauna in Australia by design, accident and natural processes has led to a considerable number of invasive, feral and pest species which have flourished and now impact the environment adversely. Introduced organisms affect the environment in a number of ways. Rabbits render land economically useless by eating everything. Red foxes affect local endemic fauna by predation while the cane toad poisons the predators by being eaten. The invasive species include birds (Indian mynah) and fish (common carp), insects (red imported fire ant) and molluscs (Asian mussel). The problem is compounded by invasive exotic flora as well as introduced diseases, fungi and parasites.
Costly, laborious and time-consuming efforts at control of these species has met with little success and this continues to be a major problem area in the conservation of Australia's biodiversity.
Many of the introduced species are not regulated through wildlife services and can be regularly hunted year round.
Human impact and conservation.
For at least 40,000 years, Australia's fauna played an integral role in the traditional lifestyles of Indigenous Australians, who relied upon many species as a source of food and skins. Vertebrates commonly harvested included macropods, possums, seals, fish and the short-tailed shearwater, most commonly known as the muttonbird. Invertebrates used as food included insects such as the bogong moth and larvae collectively called witchetty grubs and molluscs. The use of fire-stick farming, in which large swathes of bushland were burnt to facilitate hunting, modified both flora and fauna – and are thought to have contributed to the extinction of large herbivores with a specialised diet, such as the flightless birds from the genus "Genyornis". The role of hunting and landscape modification by aboriginal people in the extinction of the Australian megafauna is debated, but increasingly favours the idea humans were responsible for megafaunal extinction.
Despite the major impact of Aboriginals on native species populations, this is considered to be less significant than that of the European settlers, whose impact on the landscape has been on a relatively large scale. Since European settlement, direct exploitation of native fauna, habitat destruction and the introduction of exotic predators and competitive herbivores has led to the extinction of some 27 mammal, 23 bird and 4 frog species. Much of Australia's fauna is protected by legislation. The federal Environment Protection and Biodiversity Conservation Act 1999 was created to meet Australia's obligations as a signatory to the 1992 Convention on Biological Diversity. This act protects all native fauna and provides for the identification and protection of threatened species. In each state and territory, there is statutory listing of threatened species. At present, 380 animal species are classified as either endangered or threatened under the EPBC Act, and other species are protected under state and territory legislation. More broadly, a complete cataloguing of all the species within Australia has been undertaken, a key step in the conservation of Australian fauna and biodiversity. In 1973, the federal government established the Australian Biological Resources Study (ABRS), which coordinates research in the taxonomy, identification, classification and distribution of flora and fauna. The ABRS maintains free online databases cataloguing much of the described Australian flora and fauna. Impacts such as the illegal setting of traps in rivers affect animals such as the Australian platypus, along with lack of awareness each year an average of 2–5 Australians lose their lives to what is presumed a safe creature. The key is understanding of Australia's diverse wildlife and fauna; what seems safe is often deadly.
The Australian Wildlife Conservancy is the largest private owner of land for conservation in the country which is dedicated to protecting endangered species across 4.8 million hectares of land in the most popular regions such as the Kimberley, Cape York, Lake Eyre and the Top End. This not-for-profit organisation is working hard to avoid extinction of the endangered native species in various wildlife sanctuaries.
Australia is a member of the International Whaling Commission and is strongly opposed to commercial whaling—all cetacean species are protected in Australian waters. Australia is also a signatory to the CITES agreement and prohibits the export of endangered species. Protected areas have been created in every state and territory to protect and preserve the country's unique ecosystems. These protected areas include national parks and other reserves, as well as 64 wetlands registered under the Ramsar Convention and 16 World Heritage Sites. , 10.8% (774,619.51 km2) of the total land area of Australia is within protected areas. Protected marine zones have been created in many areas to preserve marine biodiversity; , these areas cover about 7% (646,000 km2) of Australia's marine jurisdiction. The Great Barrier Reef is managed by the Great Barrier Reef Marine Park Authority under specific federal and state legislation. Some of Australia's fisheries are already overexploited, and quotas have been set for the sustainable harvest of many marine species.
The "State of the Environment Report, 2001", prepared by independent researchers for the federal government, concluded that the condition of the environment and environmental management in Australia had worsened since the previous report in 1996. Of particular relevance to wildlife conservation, the report indicated that many processes—such as salinity, changing hydrological conditions, land clearing, fragmentation of ecosystems, poor management of the coastal environment, and invasive species—pose major problems for protecting Australia's biodiversity.


Acrossocheilus spinifer

Acrossocheilus spinifer is a species of cyprinid fish. It occurs in the upper reaches of rivers and hill streams in Guangdong and Fujian in southern China.


Tepuihyla talbergae

The Kaieteur Tepui treefrog ("Tepuihyla talbergae") is a species of frog in the family Hylidae endemic to Guyana.
This species is known only from the type locality, which is given as "Kaieteur Falls, 366 m asl (05° 10' N; 59° 28' W), Mazaruni-Potaro District, Guyana" (Duellman and Yoshpa 1996). It might occur more widely.


Salmo obtusirostris salonitana

Salmo obtusirostris salonitana (also termed by the common names soft-muzzled trout or Solin salmon and the scientific synonym Salmothymus obtusirostris salonitana) is an endemic trout subspecies found in the Jadro River in the vicinity of Solin (Dalmatia, Croatia), and in the nearby , where it was introduced in 1964. The upper reaches of the Jadro River including Jadro Spring, covering an area of 7.8 hectares, have been protected as an ichthyological reserve since 1984, for the purpose of preserving this endangered fish species, "S. o. salonitana".
This fish species is thought to be endangered not only by historic river diversions, but by increasing urbanisation, overfishing and by the presence of the rainbow trout, introduced into the Jadro before World War II.


Smooth green snake

The smooth green snake ("Opheodrys vernalis") is a species of North American nonvenomous snake in the family Colubridae. The species is also referred to as the grass snake. It is a slender, "small medium" snake that measures as an adult. It gets its common name from its smooth dorsal scales, as opposed to the rough green snake, which has keeled dorsal scales. The smooth green snake is found in marshes, meadows, open woods, and along stream edges, and is native to regions of Canada, the United States, and northern Mexico. A non-aggressive snake, it seldom bites and usually flees when threatened. It mates in late spring to summer, and females lay their eggs from June to September.
Description.
The smooth green snake is slender. In size, it is classified as a "small medium" snake, reaching to in total length (including tail) as an adult. The longest smooth green snake was measured as being in total length. The tail makes up about 1/4 to 1/2 the total length of the snake; males have longer tails than females.
It is uniform light green on its back, with a yellow or white belly, and has smooth dorsal scales, unlike those of the rough green snake, which are keeled. Its smooth dorsal scales are arranged in 15 rows at midbody.
At birth, its dorsal coloration is different from that when it matures. At first, it can be olive green, blue-gray, or even brown, but after it sheds its skin for the first time, it becomes the characteristic bright green. The dorsal coloration can also vary depending on location: bluish in Kansas, olive-tinted light brown in southeastern Texas, and bronze in northern Wisconsin.
It uses its tongue, red with a black end, by flicking it in and out of its mouth to "smell" what is around it.
Etymology.
The subspecific name, "blanchardi", is in honor of American herpetologist Frank N. Blanchard.
Geographic range.
The smooth green snake is only native to the Nearctic region. The range spreads through southeastern Canada, west to Saskatchewan, and south through Illinois and Virginia. It can also be found in other areas, such as Wyoming, New Mexico, Iowa, Missouri, Colorado, Kansas, Texas, Mississippi, and northern Mexico.
Threats.
"O. vernalis" is hunted by various predators, including the red-tailed hawk, great blue heron, rough-legged buzzard, bears, raccoons, foxes, and the common house cat. Humans also find these snakes in the wild and keep them for pets. They are subjected to commercial collection because of their nice skin coloration, passive nature, and small size. However, this snake is not known to survive well in captivity. Because their populations are usually isolated and small in size, this commercial collection can greatly affect the overall population.
The smooth green snake population is also declining due to the use of pesticides, as well as destruction of habitats. Pesticides are particularly harmful to the snake when used in riparian areas, mountain foothills and meadows. Because the smooth green snake's diet consists mainly of insects, insecticides put the snake at great risk in areas where they are applied. The reduction of its prey is a major cause of the death of the snakes, as well as one of the most important natural threats to its population.
Habitat destruction is caused by road building, logging, cattle grazing, and the draining of streams. Logging and mining conducted in a smooth green snake habitat can be a source of snake mortality. Roads and highways are a major cause of deaths, especially those near streams or other habitats the snake occupies. Livestock grazing has been found to reduce snake populations in some areas, where five times the amount of snakes were found on ungrazed areas, compared to grazed areas. The effects of livestock grazing include the reduction of grass, changes in tree species, compaction of soil, and more erosion, which affect the reptile population in these areas. Flooding, freezing, and destruction of dens can destroy large numbers of smooth green snakes, as well as other species of snake with which it may hibernate.
Human recreational activities, such as off-road vehicles near wetlands, are also damaging its habitat. Lakes and streams are enjoyable areas for recreation, but human activity in these areas can degrade them. The use of off-road vehicles in or around wetlands, however, is the most damaging recreational activity. Mud bogging significantly damages and destroys these areas. Also, oil and gasoline from off-road vehicles has been found in snake habitats.
Conservation status.
The smooth green snake is of least concern in terms of conservation, but the concern is increasing in the U.S. with some states citing anecdotal evidence of fewer sightings and residential sprawl.
While there is some research showing the population of the snake is declining, only a small number of states (Iowa, Missouri, Indiana, Michigan, North Carolina, Montana, and Texas protect the smooth green snake. Wyoming, Nebraska, and Colorado also protect the snake under state law. This law prohibits commercial collection of the snake and collection by individuals.
Habitat.
"O. vernalis" can be found in many different habitats, including marshes, meadows, the edges of streams, and open woods. It prefers to be on the ground, in open areas without a lot of shrubs. During hibernation, the smooth green snake looks for burrows, ant hills, and other dug-out underground areas, normally gathering in large numbers. It prefers moist habitats and areas near permanent water sources, usually staying in green areas for camouflage. Being cold blooded, it prefers warm areas, lying in the sun on rocks and logs, also using them for hiding.
Behavior.
The smooth green snake relies on an environment matching its green scales for camouflage to protect itself from predators. If threatened, a smooth green snake will usually flee. It is a docile snake, seldom biting and usually allowing humans to come close. If provoked, it can secrete a substance from its anal gland, causing a foul smell. When handled by humans, it usually shows excited behavior and calms down after wrapping itself around a finger. When it hunts, it turns its head from side to side, finding prey with its tongue and an organ on the roof of its mouth that interprets chemical signals. It has no ears, relying on vibrations to figure out its surroundings. Its sight is relatively strong over short distances. Due to stretchy ligaments in its jaw, it can swallow prey whole, even those that are larger than its own body diameter. It can shed its skin as often as every four to five weeks, allowing for growth.
During months when the weather is warmer, the smooth green snake tends to be active both day and night; while in the colder winter months, it hibernates in groups. Ant hills and rodent burrows are used during hibernation as part-time homes.
Diet.
The smooth green snake mostly eats insects and spiders, including spineless caterpillars, harvestmen, moths, ants, snails, worms, and slugs. While hunting, it uses both chemical and visual clues to find prey, and kills with a strike instead of constriction.
Reproduction.
Sexually mature smooth green snakes mate in the late spring or summer, and gravid females lay eggs from June to September. Usually, two clutches are laid, each containing four to six eggs. Females usually lay their eggs in rodent burrows, mounds of rotting vegetation, sawdust piles, or rotting logs. In the northern habitats of this species, communal nesting has been observed. Smooth green snake eggs are white and oval; they have thin shells and are about one inch in length. They have an average mass of 2.6 grams. The eggs hatch four to 23 days after being laid.


Isthmohyla insolita

Isthmohyla insolita is a species of frogs in the family Hylidae.
It is endemic to Honduras.
Its natural habitats are subtropical or tropical moist montane forests and rivers.
It is threatened by habitat loss.


Corsican finch

The Corsican finch ("Carduelis corsicana"), also known as the Corsican citril finch or Mediterranean citril finch, is a bird in the true finch family, Fringillidae.
Formerly, both were placed in the genus "Serinus", but they appear to be close relatives of the European goldfinch (Arnaiz-Villena "et al.", 1998).
Distribution.
It is endemic to the Mediterranean islands of Corsica, Sardinia, Elba, Capraia and Gorgona.
Description.
It has dark-streaked brown upperparts and brighter yellow underparts than the citril finch does.
Taxonomy.
The first formal description of the Corsican finch was by the German zoologist Alexander Koenig in 1899 under the binomial name "Citrinella corsicana". It was formerly regarded a subspecies of the citril finch, but it differs in morphology and vocalizations (Förschler & Kalko, 2007) as well as mtDNA sequence (Sangster, 2000, "contra" Pasquet & Thibault, 1997, Förschler "et al." 2009) and they are now considered distinct species (Sangster "et al.", 2002, Förschler "et al." 2009).


Liopropoma santi

Liopropoma santi, the spot-tail golden bass, is a species of marine ray-finned fish, related to the groupers and classified within the subfamily Epinephelinae of the family Serranidae. It has been collected from deep reefs off Curaçao, southern Caribbean; it is the deepest occurring "Liopropoma" species in the Atlantic Ocean.
Discovery.
"Liopropoma santi", along with another basslet, "Liopropoma olneyi", were discovered during dives by manned submersibles in deep waters off Curaçao in the Caribbean. The project was funded by the Smithsonian Institution’s National Museum of Natural History.
Description.
"Liopropoma santi", like two other related bass species, "L. aberrans" and "L. olneyi", has a golden body but can be differentiated from other "Liopropoma" species in the Western Atlantic in a number of ways. The diagnostic feature of the fish is the presence of a dark spot on the lower part of its caudal fin (tail fin), which feature gives the species its common name. The lower part of the fish body is of a colour ranging from pale yellow to white. The upper lip of the fish has a yellowish to orange coloured stripe along it and it has a series of white, striped markings on the ventral portion of the trunk resembling "chevrons". The dorsal fin has 13 spines and an indented margin.
Etymology.
The specific epithet "santi" commemorates Roger Sant, a philanthropist and supporter of the Smithsonian Institution who was present at the manned submersible dive in which an exemplar of "L. santi" was collected.
Habits.
Of all the species of "Liopropoma", "L. santi" resides at the deepest levels of the reef, having been sighted only between . When approached by a submersible with lights it took shelter in caves and crevices in the reef.


Arthrosphaera versicolor

Arthrosphaera versicolor, is a species of pill millipedes in the family Arthrosphaeridae. It is endemic to Sri Lanka.