Actaea fossulata   A. M. Edwards  (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: Government of India

Carapace octagonal, broad; lobules convex, distinctly demarcated, covered thickly with minute granules of equal sizes, in between them, deep cavities present specially on branchial regions and on the grooves. The lobules 1M, 2M, divided 3M; 4M, 1P specially the last two are distinctly demarcated by the deep grooves. The presence of pits and craters gives the carapace a worm eaten appearance. First of the four antero-lateral lobe is indistinct, low and shallow. The upper borders of the hands bluntly crested and the outer sides of hands and wrists are pitted, rather than eroded. Upper borders of the carpus and propodus of legs adorned with two, small cup-like cavities or troughs. Minute granules present on the upper surfaces of leg joints, maxillipeds, sternum and on abdomen. Dark brown color of fingers extend upto 2/3 of the lower border of palm and it is like a triangular patch, still exists in the specimens preserved for a long time in spirit.

Synonym (s)
Cancer fossulatus Giard, 1859
Actaea schmarde Heller, 1861
Actaea fossulata A. M. Edwards, 1865

Common Name (s)
Economic Importance and Threats



• Andaman and Nicobar Islands, Andamans INDIA
• Gulf of Aden

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 -

Page last updated on:2010-11-08

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