Echinoecus pentagonus, the sea urchin crab, is a species of crab in the family Pilumnidae found from the Red Sea and East Africa to French Polynesia and the Hawaiian Islands.[2] This crab is a parasite that lives in the rectum of a sea urchin. In Hawaii, it chooses only Echinothrix calamaris, leaving few of these urchins unpopulated. Its curved and pointed carapace reaches only 0.5 inches (1.3 cm) in width.[3]
| Echinoecus pentagonus | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Pilumnidae |
| Genus: | Echinoecus |
| Species: | E. pentagonus
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| Binomial name | |
| Echinoecus pentagonus (A. Milne-Edwards, 1879) [1]
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Taxonomic synonyms of E. pentagonus include:[4]
- Echinoecus klunzingeri Miyake, 1939
- Echinoecus pentagonus Rathbun, 1894
- Echinoecus rathbunae Miyake, 1939
- Eumedon convictor Bouvier & Seurat, 1906
- Eumedon pentagonus A. Milne-Edwards, 1879
- Eumedonus petiti Gravier, 1922
- Liomedon pentagonus Klunzinger, 1906
References
edit- ^ Sammy De Grave; N. Dean Pentcheff; Shane T. Ahyong; et al. (2009). "A classification of living and fossil genera of decapod crustaceans" (PDF). Raffles Bulletin of Zoology. Suppl. 21: 138. Archived from the original (PDF) on 2011-06-06.
- ^ "Echinoecus pentagonus (Milne-Edwards, 1879)". SeaLifeBase. Retrieved December 22, 2010.
- ^ John P. Hoover (2007). Hawaiian Sea Creatures. Mutual Publishing. ISBN 1-56647-220-2.
- ^ P. Davie (2010). "Echinoecus pentagonus". World Register of Marine Species. Retrieved December 22, 2010.
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