Actaea scabra   Odhner,  1925 (Crab)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Malacostraca
Order:Decapoda
Family:Xanthidae

Image copyrights: Government of India

Description
Size: Width 23 mm; length 18 mm

A medium sized, moderately convex crab with carapace 7/9 as long as broad and not quite flat on posterior third; lobules on the anterior two thirds of carapace are separated by wide, deep grooves, the lobules on posterior third of carapace are more fainter and the exposed surfaces and grooves are covered with soft, brown, velvety pad of fur. The hairy coat could not conceal the minute, small, crisp granules on legs and on posterior third of the carapace. The granules on chelipeds and on anterior part of carapace, on four antero-lateral lobes are sharp, larger than on other parts. Chelipeds stout, almost equal, fingers long, obtusely pointed and white to deep brown in color. Wrists prominent, traversed by one transverse and one long groove. The legs with markedly grooved carpus; hairs present, but not so thick enough to conceal the grooves and granules; last pair of legs rather shorter than the other legs.

Male anterior pleopod slightly curved in the middle, apex obtuse and spooned; inner sub-apical region fringed with a cluster of 20-25 long setae, rows of spinules present on both inner and outer surfaces of the sub apical regions.

Remarks: Carapace moderately convex in both the directions and not quite flat posteriorly like Actaea depressa and its broadly oval shaped carapace is also unlike Actaea depressa which is pentagonal in shape.


Synonym (s)
Cancer scaber Fabricius, 1787
Xantho scaber H. M. Edwards, 1834
Actaea purvula Alcock, 1898
Actaea scabra Odhner, 1925

Common Name (s)
Economic Importance and Threats

Ecology

Biogeography


• INDIA (Record: 1989)

Literature Source(s)
  • Deb, M (1989) Contribution to the study of Xanthidae: Actaeinae (Decapoda: Crustacea) of India Records of the Zoological Survey of India. Occasional Paper No. 117 ZSI, Calcutta 59 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org

Page last updated on:2010-08-17

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