Actumnus dorsipes   (Stimpson,  1858) (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: KANI-chan

Palm dorsally and proximally covered with tomentum, lower and distal surfaces being naked. Ambulatory legs rather slender and the propodus of anterior three pairs bears a dorsal longitudinal rows of hairs.

Carapace globose, extremely deep, not very much broader than long, covered like the chelipeds and legs with soft, tough stiff hair, fairly well areolated, finely granular under a lens. Front about a third the greatest breadth of the carapace, cut into two convex, rounded, finely denticulate lobes, of which the outer angles form dentiform lobules. Upper orbital margin not prominent, the two notches are very faint and shallow, but are recognizable. Lower orbital margin with a deep narrow cleft just below the outer orbital angle. No subhepatic tooth. Antennulary flagellum about a third the length of the carapace, not hairy, except at base. Chelipeds unequal, both hands covered, on the outer surface, upper and lower borders with prominent spiniform granules, which also extend some way along both fingers. Legs rather short, the longest pair being about half again as long as the carapace.

Synonym (s)
Pilumnus dorsipes Stimpson, 1858

Common Name (s)
Economic Importance and Threats

Habitat:  Sandy


• Lakshadweep INDIA
• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • Jeyabaskaran, R; Wafar, S and Wafar, M (2002) CD on Brachyuran Crabs of West Coast, India Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • KANI-chan Available at -
  • Deb, M and Rao, GC (1993) A check-list of the brachyuran crabs (Crustacea: Decapoda)of Bay islands Journal Of The Andaman Science Association Andaman Science association, Port Blair 8(1-2) 25-34 Available at - NIO, Goa

Page last updated on:2011-02-04

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