Choriaster granulatus

Choriaster granulatus

The roll starfish ( Choriaster granulatus ), sometimes simply roll star or Grained called cushion star, is a large starfish. He lives in the Red Sea, the Indian Ocean, and the western and southern Pacific.

Features

Rolling starfish have a thick, high-backed body and short, strong, forward rounded arms. The thick, smooth skin is brownish, red, orange, yellow, cream or white. Short spines and warts are present only on small, color contrasting from the rest of the body fields. The ends of the rotating circular in cross-section arms are thornless. The Ambulakralrinnen bend on the arm ends up almost to the top. The animals usually reach a diameter of 25, a maximum of 40 centimeters.

Way of life

Rolling sea stars live on rocks, sand or coral reefs in shallow water 5 to 40 meters deep. They feed on detritus, carrion and sessile invertebrates such as sponges and coral polyps. You are probably dioecious, asexual reproduction has not been observed. Roll stars are sometimes hosts of commensal gut fish ( Carapidae ). Under her body is often the color of the starfish adapted Partnergarnele Periclimenes soror hiding.