Calappa pustulosa   Alcock,  1896 (Crab)
Organism information awaits expert curation
Class: Malacostraca

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Size: Width of carapace 46 mm; length of carapace 47 mm.

Color: Bright grey in fresh preserved condition.

Carapace sub circular. There are five obtuse teeth around the clypeiform expansion. Posterior border is bounded by an indistinct tooth on either side. The clypeiform expansion of carapace consisting of five short broad teeth, the last of which is in advance of the level of the posterior border. Its surface is covered with large bullous tubercles arranged in seven parallel longitudinal rows. The antero-lateral borders are smooth in their anterior half, crenulated in their posterior half. The posterior border is bounded on either side by a faint prominence. The pterygostomian regions have a few scanty hairs. The front is sharply bilobed, its tip is not quite so broad as the orbit, beyond the level of it projects. The crest at the distal end of the arm is four-lobed. The upper surface like those on the carapace. The crest of palm is serrate. To sterna corresponding to the 2nd, 3rd and 4th legs are inflated.

Similar species: The abdomen of this species looks like Calappa lophos.

Synonym (s)
Calappa pustulosa Alcock, 1886
Calappa pustulosa Sakai, 1976

Common Name (s)
Economic Importance and Threats
Importance:  Commercial
(Used for the production of dryfish for fish-meal industries.)

Habitat:  Sandy, Coastal


• Lakshadweep INDIA
• Orissa INDIA
• West Bengal, Sunderbans INDIA
• Orissa, Ganjam INDIA
• Tamil Nadu, Chennai Coast INDIA
• Tamil Nadu INDIA
• West Bengal (Lat: 21.16) (Long: 85.83) INDIA
• West Bengal (Lat: 21.63) (Long: 89.83) INDIA
• West Bengal, South 24 Parganas INDIA
• Kerala, Kollam, Neendakara INDIA (Record: 05/2005-04/2006)
• Kerala, Ernakulam, Murambam INDIA (Record: 05/2005-04/2006)
• Kerala, Kozhikode, Puthiyappa (Lat: 11.5) (Long: 76) INDIA (Record: 05/2005-04/2006)
• Kerala, Malappurram, Ponnani INDIA (Record: 05/2005-04/2006)
• Kerala, Kannur, Azhikkal INDIA (Record: 05/2005-04/2006)

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 -
  • Available at -
  • Nandi, NC and Pramanik, SK (1994) Crabs and crab fisheries of Sunderban Hindustan Publishing Corporation, Delhi 192 pp Available at - NIO, Goa
  • Dr. Ramesh, R; Dr. Nammalwar, P and Dr. Gowri, VS (2008) Database on coastal information of Tamil Nadu Report Submitted to Environmental Information System (ENVIS) Centre, Department of Environment, Government of Tamil Nadu Institute for Ocean Management, Anna University, Chennai, Tamil Nadu. Available at -
  • 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
  • Roy, MKD and Nandi, NC (2008) Checklist and distribution of Brachyuran crabs of West Bengal, India Journal of Environment and Sociobiology Social Environmental and Biological Association, Kolkata, India 5(2) 191-214 Available at - NIO,Goa
  • Roy, MK (2010) Diversity and Distribution of Crustacea Fauna in wetlands of West Bengal Journal of Environment and Sociobiology Social Environmental and Biological Association, Kolkata, India 7(2) 147-187 Available at - NIO,Goa
  • Kumar, AB; Kumar, MS; Raffi, SM and Khan, SA (2007) Diversity of brachyuran crabs associated with trawl by-catch in Kerala coast, India Indian Journal of Fisheries Indian Journal of Fisheries For the Indian Council of Agricultural Research, Kochi, India 54(3) 283-290 Available at -

Page last updated on:2012-03-05

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