Archive | Phylum Echinodermata

Larvial Forms of Echinoderms (With Diagram)

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 [...]

By Shriya S|2017-01-11T14:47:31+00:00January 11, 2017|Phylum Echinodermata|Comments Off

Classification of Phylum Echinodermata | Zoology

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 [...]

By Shriya S|2017-01-11T14:47:31+00:00January 11, 2017|Phylum Echinodermata|Comments Off