Chasmagnathus
(Redirected from Chasmagnathus convexus)
| Chasmagnathus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Varunidae |
| Genus: | Chasmagnathus De Haan, 1833[1] |
| Species: | C. convexus |
| Binomial name | |
| Chasmagnathus convexus (De Haan, 1835)[1] | |
| Synonyms[1] | |
| |
Chasmagnathus convexus is a common mud-flat crab of the family Varunidae, which is endemic to East Asia.[2][3] In Japan, this crab is commonly called hamagani. This crab has two forms that differ in color; one is olive green and the other is purple.[2] Differences in diet are believed to be responsible for the color variation between the two forms. C. convexus is large, relative to related crabs, and can reach 4.5 to 5 centimetres (1.8 to 2.0 in) wide across its carapace.[4] It is predominantly nocturnal.[2]
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References
[edit]- 1 2 3 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.
- 1 2 3 Hsi-Te Shih; Hiroshi Suzuki (2008). "Taxonomy, phylogeny, and biogeography of the endemic mudflat crab Helice/Chasmagnathus complex (Crustacea: Brachyura: Varunidae) from East Asia" (PDF). Zoological Studies. 47 (1): 114–125. Archived from the original (PDF) on 2017-08-09. Retrieved 2014-08-18.
- ↑ Katsushi Sakai (ed.). "Chasmagnathus convexus". Crabs of Japan. Retrieved January 16, 2009.
- ↑ Miyasaka, Hitoshi; Genkai-Kato, Motomi; Goda, Yukiko; Omori, Koji (2007). "Length-weight relationships of two varunid crab species, Helice tridens and Chasmagnathus convexus, in Japan". Limnology. 8 (1): 81–83. Bibcode:2007Limno...8...81M. doi:10.1007/s10201-006-0195-8. S2CID 23289023.
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