Pilumnus minutus   De Haan,  1835 (Crab)
Organism information awaits expert curation
Class: Malacostraca

Image copyrights: NIO, Goa

External orbital tooth small but distinctly spine tipped; lower outer surface of palm of larger cheliped smooth and glabrous, merus of ambulatory legs unarmed, carpus with a sharp distal spine; inner angle of intraorbital margin not armed with a long spine.

Carapace and legs covered with stiff hairs of two kinds-long and short, the former most numerous on the legs. Front about a third the greatest breadth of the carapace, deflexed, cut into two lobes much like those of Pilumnus vespertilio in shape. Upper orbital margin smooth, with two very faint and shallow notches; lower margin denticulate, with a gap just below the outer angle. No sub-hepatic tooth. Anterolateral border much shorter than the posterolateral with 4 spiniform teeth, one of which is the orbital angle. Antennary flagellum of moderate length, without hairs, except at base. Chelipeds unequal; borders of arm finely granular or denticulate, wrists with the upper and outer surfaces rough and the inner angle sharply pronounced. Legs rather slender, the longest pair about two-thirds again as long as the carapace.

Synonym (s)
Pilumnus habererianus Doflein, 1902
Pilumnus hirsutus Stimpson, 1858

Common Name (s)
Economic Importance and Threats

Habitat:  Reef Associated


• Lakshadweep INDIA
• Andaman and Nicobar Islands INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Tamil Nadu INDIA

Literature Source(s)
  • Jeyabaskaran, R; Wafar, S and Wafar, M (2002) CD on Brachyuran Crabs of West Coast, India Available at - http://www.nio.org/Biology/brachyuran/index.html
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Marine Biological Station, Chennai, Tamil Nadu (2003) Checklist of marine fauna of Tamil Nadu Department of Environment, Government of Tamil Nadu Available at - http://tnenvis.nic.in
  • 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
  • Roy, MKD and Nandi NC (2007) Brachyuran diversity in coastal ecosystems of Tamil Nadu Journal of Environment and Sociobiology Social Environmental and Biological Association, Kolkata, India 4(2) 169-192 Available at - NIO,Goa

Page last updated on:2011-10-11

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