Chiromantes haematocheir

Chiromantes haematocheir is a mudflat crab of the family Sesarmidae (subfamily Sesarminae), which is endemic to East Asia. It is known under the common names red-clawed crab or akategani (Japanese) and the Latin names Grapsus haematocheir and Sesarma haematocheir. It is quite distinct from the other species placed in the genus Chiromantes, and the genus may be restricted to this one species.[1]

Chiromantes haematocheir
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Subphylum:
Crustacea
Class:
Malacostraca
Order:
Decapoda
Infraorder:
Brachyura
Family:
Sesarmidae
Genus:
Chiromantes
Species:
C. haematocheir
Binomial name
Chiromantes haematocheir
(De Haan, 1833)

Description

C. 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.[2]

Mountain crabs

Known as "yama-gani" in Japan,[3] this variety of C. haematocheir can be found in Nagano prefecture where elevations often exceed 600 metres (2,000 ft) above sea level, and distances to the ocean can be over 80 kilometres (50 mi). This indicates that they are freshwater crabs, probably living in forest streams (if they live in water at all).

gollark: Websockets are perfect and without flaw, except that you generally need a somewhat complex library for them, even though most things ship with HTTP clients.
gollark: Which reminds me, maybe I ought to add a long polling mode.
gollark: If I had done that, would I say so instead of merely basking in the knowledge that those devices were, hypothetically, part of the PotatOS Computing Network™ and able to do arbitrary computation/networking tasks as required (via SPUDNET)?
gollark: But yes, I totally didn't* remotely install potatOS in place of the firmware on all your network accessible devices.
gollark: Oh yes, SPUDNET-py.

See also
  • Land crab

References
  1. 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.
  2. "Marine Species Identification Portal : Chiromantes haematocheir". Retrieved January 17, 2009.
  3. Johannes Justus Rein. "Fauna". Japan - Travels and Researches Undertaken at the Cost of the Prussian Government. pp. 175–212. ISBN 978-1-4460-1684-8.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.