Hemigrapsus
| Hemigrapsus | |
|---|---|
 | |
| Hemigrapsus nudus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Malacostraca |
| Order: | Decapoda |
| Infraorder: | Brachyura |
| Family: | Varunidae |
| Genus: | Hemigrapsus Dana, 1851 |
| Type species | |
| Hemigrapsus crassimanus Dana, 1851 | |
Hemigrapsus is a genus of varunid crabs comprising thirteen species found almost exclusively in the Pacific Ocean.
Biogeography
The natural range of the genus is restricted to the Pacific Ocean, except for Hemigrapsus affinis which lives along the Atlantic coasts of South America, from Cape São Roque (Rio Grande do Norte state, Brazil) to the San Matías Gulf, (Patagonia, Argentina). H. estellinensis is almost certainly extinct, but was endemic to a hypersaline spring in the Texas Panhandle, 500 miles (800 km) from the sea.[1] Populations of Hemigrapsus sanguineus have been introduced from the species' native range in East Asia to several places, and now range from Portland, Maine to North Carolina, and along the English Channel;[2][3][4] H. takanoi has been introduced to western Europe, and now extends from northern Spain to the English Channel.[5]
Species
Fifteen species are currently recognised:[6]
- Hemigrapsus affinis Dana, 1851
- Hemigrapsus crassimanus Dana, 1851
- Hemigrapsus crenulatus (H. Milne-Edwards, 1837)
- Hemigrapsus estellinensis Creel, 1964
- Hemigrapsus gibbus (Hombron & Jacquinot, 1846)
- Hemigrapsus longitarsus (Miers, 1879)
- Hemigrapsus nudus (Dana, 1851)
- Hemigrapsus octodentatus (H. Milne-Edwards, 1837)
- Hemigrapsus oregonensis (Dana, 1851)
- Hemigrapsus pallipes (H. Milne-Edwards, 1837)
- Hemigrapsus penicillatus (De Haan, 1835)
- Hemigrapsus sanguineus (De Haan, 1835)
- Hemigrapsus sexdentatus (H. Milne-Edwards, 1837)
- Hemigrapsus sinensis Rathbun, 1931
- Hemigrapsus takanoi Asakura & Watanabe, 2005
References
- ↑ Gordon C. Creel (1964). "Hemigrapsus estellinensis: a new grapsoid crab from North Texas". The Southwestern Naturalist 8 (4): 236–241. JSTOR 3669636.
- ↑ John J. McDermott (1991). "A breeding population of the Western Pacific crab Hemigrapsus sanguineus (Crustacea: Decapoda: Grapsidae) established on the Atlantic coast of North America" (PDF). Biological Bulletin 181 (1): 195–198.
- ↑ Jessica D. Sharon. "Japanese shore crab (Hemigrapsus sanguineus)". Illinois-Indiana Sea Grant College Program. Retrieved October 21, 2010.
- ↑ Dragoş Micu, Victor Niţă & Valentina Todorova (2010). "First record of the Japanese shore crab Hemigrapsus sanguineus (de Haan, 1835) (Brachyura: Grapsoidea: Varunidae) from the Black Sea" (PDF). Aquatic Invasions 5 (Supplement 1): S1–S4. doi:10.3391/ai.2010.5.S1.001.
- ↑ Akira Asakura & Seiichi Watanabe (2005). "Hemigrapsus takanoi, new species, a sibling species of the common Japanese intertidal crab H. penicillatus (Decapoda: Brachyura: Grapsoidea)" (PDF). Journal of Crustacean Biology 25 (2): 279–292. doi:10.1651/C-2514.
- ↑ Peter K. L. Ng, Danièle Guinot & Peter J. F. Davie (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world". Raffles Bulletin of Zoology 17: 1–286.
External links
Media related to Hemigrapsus at Wikimedia Commons
Data related to Hemigrapsus at Wikispecies