Paractaea indica   Deb,  1985 (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: Government of India

Size: Width 11 mm; length 9 mm; front 2 mm.

Male: Carapace broad, transversely oval in shape, thick, more strongly convex antero-posteriorly than from side to side. The entire dorsal surface of carapace divided into convex regional lobules which are closely covered with pearly granules which are visible to the naked eye. The grooves that divide the carapace are covered by thick, short, brown hairs. Lobules 2M distinct, separated from the inner lobe of divided 2M. Mesogastric area, i.e. 3M is very distinctly three lobed. Other lobules such as 4M, 1P, 2P, 2L-6L all these lobules are very clear. Front bilobed, deflexed downwards, free edge rounded and entire, separated from the inner, supra orbital corner by a notch. Outer corner of frontal lobes not recognizable. Orbits small, rounded and surrounded by granular lobules dorsally. Long, convex antero-lateral sides cut into four, broad, low, shallow, granular lobes, excluding the outer orbital corner. Postero-lateral sides short, concave and convergent.
Chelipeds are equal in male, thickly covered with short, brown, soft fur and granules, which continue upto the 2/3 of the base of both the fingers. Outer surface of the very swollen wrists and rather compressed palms are not at all dimpled or lobular.
Fingers short, curved and light brown in color, tips of fingers are broad, fluted, bare and white in color. Leg joints are rather short, compressed, covered with sharp granules and thick brown hairs, below the hairs granules are concealed. No indications of nodules present on leg joints. Under surface of the crab is also scantily hairy but not as velvety as the upper surfaces and appendages.

Anterior male pleopod is straight, tubular process, apex not very acute in shape. Inner subapical area adorned with a cluster of long setae.

Synonym (s)
Paractaea indica Deb, 1985

Common Name (s)
Economic Importance and Threats

Habitat:  Reef Associated


• Andaman and Nicobar Islands, Andamans INDIA (Record: 03/1914)
• Andaman and Nicobar Islands 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 -
  • Roy, MKD and Nandi, NC (2005) Brachyuran diversity of coral reef ecosystems in India Proceedings of the National Seminar on Reef Ecosystem Remediation SDMRI Special Research Publication No.9 220-231 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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