Hemigrapsus is a genus of varunid crabs comprising thirteen species native almost exclusively in the Pacific Ocean, but two have been introduced to the North Atlantic region.
| Hemigrapsus | |
|---|---|
| |
| Hemigrapsus nudus | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Varunidae |
| Subfamily: | Varuninae |
| Genus: | Hemigrapsus Dana, 1851 |
| Type species | |
| Hemigrapsus crassimanus Dana, 1851
| |
Biogeography
editThe 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 mi (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 along the Atlantic coast of North American from Portland, Maine to North Carolina, along the West European coast from northern Spain to Denmark, and in the northern Adriatic Sea and northern Black Sea.[2][3][4][5] H. takanoi is native to East Asia, but has been introduced to western Europe, now extending from northern Spain to Denmark, including the westernmost Baltic Sea area.[6][7]
Species
editFifteen species are currently recognised:[8]
- 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
edit- ^ Gordon C. Creel (1964). "Hemigrapsus estellinensis: a new grapsoid crab from North Texas". The Southwestern Naturalist. 8 (4): 236–241. doi:10.2307/3669636. 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. doi:10.2307/1542503. JSTOR 1542503. PMID 29303652.
- ^ Jessica D. Sharon. "Japanese shore crab (Hemigrapsus sanguineus)". Illinois-Indiana Sea Grant College Program. Archived from the original on March 3, 2011. 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.
- ^ GB Non-native Species Secretariat (September 2015). "Hemigrapsus sanguineus (Asian shore crab)". nonnativespecies.org. Archived from the original on 27 December 2018. Retrieved 6 October 2018.
- ^ 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.
- ^ Geburzi, J.C.; G. Graumann; S. Köhnk; D. Brandi (2015). "First record of the Asian crab Hemigrapsus takanoi Asakura & Watanabe, 2005 (Decapoda, Brachyura, Varunidae) in the Baltic Sea". BioInvasions Records. 4 (2): 103–107. doi:10.3391/bir.2015.4.2.06.
- ^ 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" (PDF). Raffles Bulletin of Zoology. 17: 1–286. Archived from the original (PDF) on 2011-06-06.
External links
edit
Media related to Hemigrapsus at Wikimedia Commons
Data related to Hemigrapsus at Wikispecies
