Actaea ruppelli   (Krauss)  (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: Government of India

Size: Width 32 mm; length 24 mm

Carapace 3/4 as long as wide, very convex, medium in size, well lobulated by deep, broad, smooth grooves; all the lobules of carapace and appendages are covered with miliary granules and short, brownish stiff setae. Antero-lateral sides of carapace composed of four, convex lobules, excluding the external orbital angle. Wrists of chelipeds are very swollen and larger than the palm. Upper surface of wrists dimpled and divided into about seven lobules; upper border of palm with three lobules and lower border adorned with granules; carpus and propodus of legs distinctly lobulated.
Anterior male pleopod narrow, curved; apex acute angular; inner subapical area adorned with a cluster of 12-15 gradually increasing setae and with scattered spinules.

Remarks: Textural lobular pattern of carapace is very distinct and well marked in large specimens; in the young ones these lobules and granules are flattish, minute in size and apparently seem to be different.

Synonym (s)
Aegle ruppellii Krauss, 1843
Actaea rupellii A. H. Edw., 1865
Paractaea ruppelli Sakai, 1976
Aegle rugata White, 1848

Common Name (s)
Economic Importance and Threats

Habitat:  Coastal


• Tamil Nadu, Mandapam INDIA
• Lakshadweep INDIA
• Andaman and Nicobar Islands, Andamans INDIA
• Persian Gulf

Literature Source(s)
  • Sankarankutty, C (1966) On Decapoda Brachyura from the Gulf of Mannar and Palk Bay Proceedings of the Symposium on Crustacea Marine Biological Association of India, Mandapam Camp Part I 347-362 Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • 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

Page last updated on:2010-10-29

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