The crinoid shrimp, or feather star shrimp[1] Hippolyte catagrapha, is a species of shrimp in the family Hippolytidae[2]
Crinoid shrimps grow to up to 3 cm in total length. They are well camouflaged shrimps which live on a host crinoid, the elegant feather star, Tropiometra carinata.[3]
These animals are found off the South African coast in False Bay and have been seen from 10 to at least 30 m underwater. They are probably endemic to this area.[3] There is evidence however, that these shrimp exist elsewhere in the world with the species recently observed in the Philippines.[4]
These shrimps have so far only been seen in association with crinoids. They probably eat the wastes of their host.[3]