Brittle Star (Sea Star)
Brittle star, also called serpent star, any of the 2,100 living species of marine invertebrates constituting the subclass phylum Echinodermata (spiny skin). Their long, thin arms - usually five and often forked and spiny - are distinctly set off from the small disk-shaped body. The arms readily break off but soon regrow - i.e., are regenerated.
Brittle star, also called serpent star, any of the 2,100 living species of marine invertebrates constituting the subclass phylum Echinodermata (spiny skin). Their long, thin arms - usually five and often forked and spiny - are distinctly set off from the small disk-shaped body. The arms readily break off but soon regrow - i.e., are regenerated.
The mouth, on the underside of the body, has five teeth; an anus is lacking; and the tube feet serve mainly as sense organs for detecting light and odor. The animal feeds by extending one or more arms into the water or over the mud, the other arms serving as anchors. Brittle stars are mainly deposit feeders, scavengers, and plankton feeders; however, they sometimes trap sizable animals.
Next is Damselfish