Decapod anatomy Decapod anatomy The decapod crustacean, such as a crab, lobster, shrimp or prawn, is made up of 20 body segments grouped into two main body parts, the cephalothorax and the pleon (abdomen). Each segment may possess one pair of appendages, although in various groups these may be reduced or missing. They are, from head to tail: The head also bears the (usually stalked) compound eyes. The distal portion of a mandible or maxilla which has a sensory function is known as a palp. Maxillipeds are appendages modified to function as mouthparts. Particularly in the less advanced decapods, these can be
Hermit (hummingbird) notably SACC, which consider both "T. niger" and "T. leucurus" as valid species. Additionally, Mallet-Rodrigues (2006) suggested the taxon "loehkeni" should be considered a valid species, the bronze-tailed barbthroat. Three additional species, the tooth-billed hummingbird ("Androdon aequatorialis"), the green-fronted lancebill ("Doryfera ludovicae") and the blue-fronted lancebill ("D. johannae"), have been included in this subfamily in the past, but are now placed in "Trochilinae". Hermit (hummingbird) The hermits are tropical and subtropical hummingbirds in the subfamily Phaethornithinae, comprising 30–40 species in six genera. They occur from southern Mexico, through Central America, to South America as far south as northern Argentina. Their