Diogenes investigatories   Alcock  1905 (Crab)
Organism information awaits expert curation
Class: Malacostraca

Size: 2-6 mm

Antennal and antennular peduncles of equal length. Opthalmic scales spinose throughout the free edge. Eyestalks just reach the base of the terminal point of the antennular peduncle as well as that of the antennal peduncle. Antennal flagellum thickly setose and the antennal acicle does not reach the base of the terminal joint of its peduncle. Both the chelipeds thickly setose. Left cheliped short and stout, merus with a distinct spine at the proximal end of the lower inner border and with indistinct denticles on the lower outer border. Palm higher than long and the fixed finger not deflexed. A longitudinal row of spinules on the upper part of the outer surface of the palm.

Synonym (s)
Diogenes investigatoris Alcock 1905
Diogenes investigatoris Southwell 1906

Common Name (s)
Economic Importance and Threats



• Palk Bay (Lat: 9.5) (Long: 79.25) INDIA
• West Bengal, Digha INDIA (Record: 06/09/1964, 18/11/1964)
• West Bengal, Digha Ghat INDIA (Record: 08/08/1976, 20/02/1988)
• West Bengal, Junput INDIA (Record: 07/08/1976)
• West Bengal, Ganga Sagar INDIA (Record: 12/04/1978)
• West Bengal, Bakkhali INDIA (Record: 11/04/1978)
• Andhra Pradesh, Vishakhapatnam INDIA (Record: 1995)
• Palk Bay INDIA (Record: 1995)
• Tamil Nadu, Gulf of Mannar INDIA (Record: 1995)
• Gujarat, Okha INDIA (Record: 1995)

Literature Source(s)
  • Ramakrishna; Sarkar, J and Talukdar, S (2003) Marine invertebrates of Digha coast and some recomendations on their conservation Records of the Zoological Survey of India ZSI, Kolkata 101(3-4) 1 Available at - NCL, Pune
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Reddy, KN (1995) Hermit crabs (Crustacea: Decapoda) Estuarine ecosystem series, Part 2: Hugli Matla Estuary ZSI, West Bengal 199-215 Available at - NIO, Goa

Page last updated on:2009-05-29

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