Question

different types of echinoderm larval stages

Answer 1

This larva metamorphoses to become adult. Pentactula is the basic larval stage of Crinoidea but it passes inside the egg. There is one or two larval stages in sea lilies. Doliolaria larva, which is also called Vitellaria larva, is found in some sea lilies.

Answer 2

Heya !!!


The life history of echinoderms are indirect with different types of larval stages....

Sub-phylum 1 : Pelmatozoa

Class :Crinoidia

Development includes DOLIOLARIA LARVA...



Sub-phylum2 : Eleutherozoa

Class 1: Asteroidea

Development includes BIPINNARIA and BRACHIOLARIA LARVAE...

Class 2 : Ophiuroidea

Development includes OPHIOPLUETEUS LARVA...


class 3 : Echinoidea

Development includes ECHINOPLEUTEUS LARVA...


class 4 :Holothuroidea

Development includes AURICULARIA LARVA...


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