| Crinoid shrimp | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Malacostraca |
| Order: | Decapoda |
| Infraorder: | Caridea |
| Family: | Hippolytidae |
| Genus: | Hippolyte |
| Species: | H. catagrapha |
| Binomial name | |
| Hippolyte catagrapha d'Udekem d'Acoz, 2007 | |
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]
The Caridea, commonly known as caridean shrimp or true shrimp, are an infraorder of shrimp within the order Decapoda. This infraorder contains all species of true shrimp. They are found widely around the world in both fresh and salt water. Many other animals with similar names – such as the mud shrimp of Axiidea and the boxer shrimp of Stenopodidea – are not true shrimp, but many have evolved features similar to true shrimp.
Crinoids are marine animals that make up the class Crinoidea, one of the classes of the phylum Echinodermata, which also includes the starfish, brittle stars, sea urchins and sea cucumbers. Those crinoids which, in their adult form, are attached to the sea bottom by a stalk are commonly called sea lilies, while the unstalked forms are called feather stars or comatulids, being members of the largest crinoid order, Comatulida.
Atrina squamifera, one of several species known as the horse mussel, is a species of bivalve pen shell. It is a marine mollusc in the family Pinnidae. It is endemic to South Africa.
Allogalathea elegans is a species of squat lobster that is sometimes kept in marine aquariums. Despite their common name, they are more closely related to hermit crabs than lobsters.
Burnupena papyracea, common name the papery burnupena, is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks.
The sandy anemone is a species of sea anemone in the family Actiniidae. It is native to very shallow water round the coasts of southern Africa between Luderitz and Durban.
Ophiothrix fragilis is a species of brittle star in the order Ophiurida. It is found around the coasts of western Europe and is known in Britain as the common brittle star. It is also found along the coast of South Africa where it is known as the hairy brittle star.
The walking anemone, also known as the hedgehog anemone or sock anemone, is a species of sea anemones in the order Actiniaria. It is the only member of its genus, Preactis.
Comatulida is an order of crinoids. Members of this order are known as feather stars and mostly do not have a stalk as adults. The oral surface with the mouth is facing upwards and is surrounded by five, often divided rays with feathery pinnules. Comatulids live on the seabed and on reefs in tropical and temperate waters.
Davidaster discoideus or the beaded crinoid is a species of feather star in the family Comatulidae. It was previously known as Nemaster discoidea but the World Register of Marine Species has determined that the valid name is Davidaster discoideus. It is found on reefs in the Caribbean Sea and northern coast of South America.
Comaster schlegelii, the variable bushy feather star, is a crinoid in the family Comatulidae. It was previously classified as Comanthina schlegeli but further research showed that it was better placed in the genus Comaster. It is found on shallow water reefs in the western Pacific Ocean.
The feathery sea pen is a species of sea pen in the family Virgulariidae.
Carybdea branchi, the South African box jellyfish, is a venomous species of cnidarian, in the small family Carybdeidae within the class Cubozoa.
Myzostoma fuscomaculatum, the crinoid worm, is a species of marine worm in the family Myzostomida.
The elegant feather star is a species of crinoid in the family Tropiometridae.
Pseudobranchiomma longa is a species of marine polychaete worms in the family Sabellidae. It is known as a feather-duster worm or a giant fanworm.
Laminaria pallida, the split-fan kelp, is a species of large brown seaweed of the class Phaeophyceae found from Danger Point on the south coast of South Africa to Port Nolloth, Tristan da Cunha and Gough islands in the Atlantic and Île Saint-Paul in the Indian Ocean.
Notocrinus virilis is a marine invertebrate, a species of crinoid or feather star in the family Notocrinidae. It is found in deep water in the Southern Ocean around the coasts of Antarctica and adjacent islands. A sea snail sometimes parasitizes it.
Media related to Hippolyte catagrapha at Wikimedia Commons