Starfish to starfish by the French zoologist de Blainville in 1830. It is derived from the Greek "aster", ἀστήρ (a star) and the Greek "eidos", εἶδος (form, likeness, appearance). The class Asteroidea belongs to the phylum Echinodermata. As well as the starfish, the echinoderms include sea urchins, sand dollars, brittle and basket stars, sea cucumbers and crinoids. The larvae of echinoderms have bilateral symmetry, but during metamorphosis this is replaced with radial symmetry, typically pentameric. Adult echinoderms are characterized by having a water vascular system with external tube feet and a calcareous endoskeleton consisting of ossicles connected by a mesh of
Northern spiny-tailed gecko northern spiny-tailed gecko. A large amount of this species' habitat has been lost or heavily degraded by land clearing and feral invasive species including goats. Habitat degradation and loss should not be considered a major threat at this time due to the wide distribution and a large amount of suitable habitat that remains. Northern spiny-tailed gecko The northern spiny-tailed gecko ("Strophurus ciliaris") is a species of lizard in the family Diplodactylidae which is endemic to Australia. The meaning of the scientific name or binomial, "Strophurus ciliaris", comes from "strophurus" meaning "turning-tail" and "ciliaris" meaning "eyelashed", referring to the spines above