Their small feet have neither suckers nor bubbles and do not contribute to its movement, serving to put food into its mouth, which is located on the underside of its body. Around its mouth are 5 pairs of long narrow cracks where the respiratory and genital organs are situated. The sexes in brittle stars are separate in most species, although a few are hermaphroditic having one testicle and one ovary in each gonad. The eggs are mostly developed in the sea, in rare species this occurs in the body of the female (in bags in the cracks near the mouth). They inhabit the rocky, sandy and muddy seabed along the Adriatic coast. During the day they hide under stones and rocks or are buried in the sand. Young specimens hide among the algae, sea grass and sponges. They generally feed on the remains of dead organisms, or are predatory with their prey usually being molluscs, snails and crustaceans.