Habitat selection by the settling larval stage of Echinoecus pentagonus (A. Milne Edwards), a crab inhabiting the rectum and peristome of sea urchins, was investigated by analysing orientation to the host and the factors eliciting metamorphosis in laboratory-reared

Habitat selection by the settling larval stage of Echinoecus pentagonus (A. Milne Edwards), a crab inhabiting the rectum and peristome of sea urchins, was investigated by analysing orientation to the host and the factors eliciting metamorphosis in laboratory-reared

First time, a Sea Urchin Crab, Echinoecus pentagonus (A. Milne-Edwards, 1879) is recorded from the rocky intertidal region of the Andaman Islands. It is a symbiotic crab live with Sea Urchin. This species is recorded from the Lakshadweep and Nicobar Islands