In this article we will discuss about:- 1. Pluteus Larva 2. Auricularia and Doliolaria Larvae 3. Doliolaria Larva of Crinoidea 4. Dipleurula Theory 5. Pentactula Theory 6. Regeneration in Echinoderms. Pluteus Larva: 1. Five to six pairs of arms supported by calcareous rods and with pigmented tips. 2. Presence of four ciliated bands forming epaulettes at the base of the [...]
In this article we will discuss about the classification of phylum echinodermata. Classification of Phylum Echinodermata: 1. The echinoderms are non-colonial, coelomate, marine animals, the larval bilateral symmetry of which is replaced by radial symmetry in the adult. 2. The surface is covered with an exoskeleton of calcareous plates or ossicles, which usually support a system of movable or immovable [...]
In this article we will discuss about Phylum Echinodermata:- 1. Classification of Phylum Echinodermata 2. Diagnostic Features of Phylum Echinodermata 3. Scheme of Classification 4. Systematic Resume. Classification of Phylum Echinodermata: Phylum Echinodermata consists exclusively of marine animals, with some being the most beautiful of all sea-creatures. It contains about 6,750 living species (Barnes et al., 1993) and the diversity [...]