Bat star
Biology
The bat star is very common in central California waters, from the low-tide region to 300 metres in depth. To find it, simply look under rocks or in crevices. It can also live in great numbers in certain kelp forests. Unlike other sea star species, the bat star feeds on detritus and dead plants and animals.
Conservation
The bat star gets this name from the membranes between its arms, which resemble bat's wings. The central disk of the animal is much wider than its short arms. Although most bat stars have five arms, some may have up to nine. Its colours may vary between green, purple, red, orange, yellow and brown, either mottled or solid.
Curiosities
If it is turned over, the bat star will use its tube feet and arms to slowly return to its previous position.