Describe Class Holothuroidea in details?
Members of this Class resemble soft and squishy cucumbers lying on their sides on the bottom of the sea. On first glance, they appear not to be radially symmetrical like the other Echinoderms, since they are elongated between their mouths and anus. However, closer study of their anatomy shows they do possess tube feet and radial symmetry just like the other Echinoderms.