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
Spiny-flanked chameleon gives birth to live young. "Trioceros laterispinis" was first described in 1932 by British herpetologist and biologist Arthur Loveridge as "Chamaeleon laterispinis". It was described under the same name in 1966 by Daan and Hillenius. In 1982, Böhme described it as the "Chamaeleo laterispinis brookesiaeformis", and in 1999, Necas described it as the "Chamaeleo laterispinis". Tilbury and Tolley described it as "Trioceros laterispinis" in 2009. It is commonly also known as the spiny-flanked chameleon. Spiny-flanked chameleon The spiny-flanked chameleon (also known as the spiny-sided chameleon), Trioceros laterispinis, is a species of chameleon endemic to the United Republic of Tanzania, East