Plagusia squamosa   (Herbst,  1790) (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: NIO, Goa

Color: Reddish brown.

Carapace thick, merus of external maxillipeds as broad as ischium. Merus of pereopods with one subterminal tooth on upper margin.

All the regions of the carapace are distinct, and the surface is covered with flat pearly or squamiform tubercles which are fringed anteriorly with little close-set bristles of uniform length. The crab is distinguished by the absence of true front, so that the antennular fossae are visible in a dorsal view as deep clefts in the anterior borders are cut into four teeth. The chelipeds are massive, and have tubercles on the upper surface of the palm and finger arranged in longitudinal rows.

Synonym (s)
Cancer squamosa Herbst, 1790

Common Name (s)
Economic Importance and Threats

Habitat:  Rocky


• West Coast INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Lakshadweep INDIA
• Andaman and Nicobar Islands INDIA
• East Coast 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 -

Page last updated on:2010-11-11

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