Chiromantes haematocheir
{{Short description|Species of crab}}
{{Speciesbox
| image = Chiromantes haematocheir - National Museum of Nature and Science, Tokyo - DSC07542.JPG
| genus = Chiromantes
| species = haematocheir
| authority = (De Haan, 1833)
| synonyms = {{hidden begin|title = List}}
- Grapsus (Pachysoma) haematocheir De Haan, 1833
- Holometopus haematocheir (De Haan, 1833)
- Holometopus serenei Soh, 1978
- Perisesarma haematocheir (De Haan, 1833)
- Sesarma haematocheir (De Haan, 1833)
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File:Chiromantes_haematocheir_-_Kanagawa_-_2023_june_17.ogg, Japan]]
Chiromantes haematocheir, commonly known as red-clawed crab, is a species of mudflat crab in the family Sesarmidae. It is endemic to East Asia and quite distinct from the other species placed in the genus Chiromantes. The genus may be restricted to this one species.{{cite journal|journal=Raffles Bulletin of Zoology |year=2008 |volume=17 |pages=1–286 |title=Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world |author=Peter K. L. Ng |author2=Danièle Guinot |author3=Peter J. F. Davie |name-list-style=amp |url=http://rmbr.nus.edu.sg/rbz/biblio/s17/s17rbz.pdf |url-status=dead |archiveurl=https://web.archive.org/web/20110606061453/http://rmbr.nus.edu.sg/rbz/biblio/s17/s17rbz.pdf |archivedate=2011-06-06 }}
Description
Chiromantes haematocheir has a square carapace with a smooth surface and irregular stripes along the sides. Males have large, smooth chelae with curved claws. The color of these crabs varies throughout their development; juvenile crabs typically have a white or yellow carapace, while adults are usually crimson red.{{cite web |url=http://species-identification.org/species.php?species_group=crabs_of_japan&id=1706 |title=Marine Species Identification Portal : Chiromantes haematocheir |accessdate=19 January 2021}}
Mountain crabs
A variety of C. haematocheir can be found in Nagano prefecture, Japan, where elevations often exceed {{convert|600|m}} above sea level, and distances to the ocean can be over {{convert|80|km}}. This indicates that they are freshwater crabs, probably living in forest streams, if they live in water at all.{{cn|date=May 2024}}
See also
References
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