Afruca

Genus of crab From Wikipedia, the free encyclopedia

Afruca is a genus of fiddler crabs belonging to the family Ocypodidae.[2] Afruca tangeri, the only species in this genus, lives along the Atlantic coasts of western Africa and southwestern Europe.[3]

Phylum:Arthropoda
Order:Decapoda
Suborder:Pleocyemata
Quick facts Scientific classification, Binomial name ...
Afruca
male, Gambia
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Brachyura
Family: Ocypodidae
Genus: Afruca
Crane, 1975
Species:
A. tangeri
Binomial name
Afruca tangeri
(Eydoux, 1835)
Synonyms [1]
  • Uca tangeri
  • Gelasimus cimatodus Rochebrune, 1833
  • Gelasimus tangeri Eydoux, 1835
  • Gelasimus platydactylus H. Milne-Edwards, 1837
  • Gelasimus perlatus Herklots, 1851
  • Gonoplax speciosus Monod, 1933 [nomen nudum]
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Afruca tangeri in Angola
two male Afruca tangeri crabs
two male Afruca tangeri fighting over a burrow in Morocco

Description

Afruca tangeri is one of the largest species of fiddler crab, with a carapace up to 50 millimetres (2.0 in) wide,[4] and up to 25 mm (1.0 in) long.[5] The males have one claw much larger than the other, which they use for communication.[6] Body colouration is fairly dull for a fiddler crab, but individuals are a variety of colours from dull shades of brown, to bright orange, red or purple.

Distribution

The range of Afruca tangeri extends from southern Portugal southwards to Angola;.[5] It is the only fiddler crab species on the Eastern Atlantic coast and the most abundant crab in The Gambia.[6]

Taxonomy

Afruca tangeri was first described by Joseph Fortuné Théodore Eydoux in 1835 as Gelasimus tangeri, but for many years it was part of the genus Uca, which then contained all the fiddler crabs worldwide. Fiddler crabs, and all crabs in the family Ocipodidae have recently undergone a major taxonomic revision using new molecular phylogenetic evidence,[1] which divided the fiddler crabs into 13 new genera. Therefore, the West African fiddler crab now forms the only species in the new genus, Afruca. The specific epithet tangeri refers to the Gulf of Tangier, Morocco, the species' type locality.[5] The common name preferred by the Food and Agriculture Organization is West African fiddler crab (French: gélasime africain; Portuguese: boca-cava-terra).[7]

References

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