Chasmagnathus

Chasmagnathus convexus is a common mud-flat crab of the family Varunidae, which is endemic to East Asia. 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. 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. It is predominantly nocturnal.

For the crab species also originally described as Ocypode convexus, see Golden ghost crab.

Chasmagnathus
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Subphylum:
Crustacea
Class:
Malacostraca
Order:
Decapoda
Infraorder:
Brachyura
Family:
Varunidae
Genus:
Chasmagnathus

De Haan, 1833 
Species:
C. convexus
Binomial name
Chasmagnathus convexus
(De Haan, 1835) 
Synonyms 
  • Ocypode (Chasmagnathus) convexus De Haan, 1833
  • Helice spinicarpa H. Milne-Edwards, 1853

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.