Actaea bullifera   Alcock,  1898 (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: Government of India

Size: Width 14.5 mm; length 10 mm

A small crab with a subcircular carapace, 2/3 as long as wide, moderately convex in both the directions and almost free from surface hairs. Whole of the carapace is subdivided into small, convex, regional lobules by deep, smooth, well cut grooves. These lobules are studded with pearly, isolated, smooth granules of nicely uniform and regular sizes. The lobules 1M; divided 2M, 3M, 4M, 1P, 2L-6L and two unbroken parallel granular lines on the posterior margin of carapace are very clear cut and distinctive in nature.
The front is deflexed, free edge finely beaded and convex near the center, median notch V-shaped. Lower orbital border markedly and evenly beaded; two sutures present on supra and one suture on infra orbital borders. Antero-lateral sides of carapace four lobed, exclusive of outer orbital angle, each lobe finely beaded. Postero-lateral sides short, distinctly concave.
The exposed surfaces of chelipeds and legs are closely, crisply granular, these granules are either pearl-like or tubercular and those on anterior edges of leg joints are spine-like. The granules on lower outer surfaces of hands are arranged in longitudinal lines; wrists and corresponding joints of legs are lobular or dimpled. Few, scanty hairs present on inner side of dactylus of legs. Cheliped fingers with lines of tubercles present on proximal ends, their cutting edges are evenly dentate, with pointed tips and white color.

Synonym (s)
Actaea nodulosa var. bullifera Alcock 1898
Actaea margaritifera var. bullifera Odhner 1925

Common Name (s)
Economic Importance and Threats



• Andaman and Nicobar Islands, Andamans INDIA

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:2010-08-17

Back to Search