Metaplax indica   H. Milne-Edwards,  1852 (Crab)
Organism information awaits expert curation
Class: Malacostraca

Size: Length of carapace: 12 mm; breadth of carapace: 18 mm.

Color: Grey, legs and chelipeds pink, the fingers a darker pink.

Dactylus of chelae of male without any prominent lobe on its dentary edge. Chelipeds of male equal. 3rd, 4th and 5th abdominal segments fused together in the male.

Carapace about two-thirds as long as broad, deepish, a little convex, its surface smooth, the regions and the cervical and epibranchial grooves faint. This species is distinguished by the equal sized male chelipeds, which are less than three times the length of the carapace. The finger has no prominent lobe on its dentary edge. The anterior borders of the carpopodites and propodites of the legs are smooth. The third, fourth and fifth male abdominal segments are fused. There are seven to nine teeth on the male infra-orbital ridge beginning with four or five small teeth, followed by two larger rounded lobules, that are separated by a large inter-space from three very small tubercles in the lateral part of the ridge.
The meropodites of all the legs, and the propodites and carpropodites of the middle two are densely hairy only on the anterior border. The third, fourth and fifth male abdominal segments are only partly fused. In the female the chelipeds are very slender, quite smooth, a little longer than the carapace, and the lower border of the orbit is finely and evenly serrulate.

Synonym (s)
Metaplax indicus H. Milne-Edwards, 1852
Metaplax indica Alcock, 1900
Metaplax indica Chakraborty, Choudhury & Deb, 1986

Common Name (s)
Economic Importance and Threats

Habitat:  Estuarine, Muddy, Coastal


• West Bengal, Sundarbans (Lat: 21.5) (Long: 88.17) INDIA
• Orissa, Mahanadi Estuary (Lat: 20.32) (Long: 86.75) INDIA
• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• West Bengal, Prentice Island (Lat: 21.67) (Long: 88.27) INDIA
• West Coast INDIA
• Gujarat, Kolak INDIA
• Karachi PAKISTAN
• Maharashtra, Mumbai INDIA
• Orissa INDIA
• Andhra Pradesh INDIA
• Maharashtra INDIA
• Karnataka INDIA (Record: 2001-2007)
• West Bengal (Lat: 21.16) (Long: 85.83) INDIA
• West Bengal (Lat: 21.63) (Long: 89.83) INDIA
• West Bengal, South 24 Parganas INDIA

Literature Source(s)
  • Zoological Survey of India (Eds.) (1998) Fauna Of Mahanadi estuary, Orissa Estuarine ecosystem series no 3 ZSI, Kolkata 1-218 Available at - ZSI, Pune
  • Chhapgar, BF (1957) Marine crabs of Bombay state Contribution No. 1 of the Taraporevala Marine Biological Station Marine Biological Station, Department of fisheries, Bombay 89 pp Available at - NIO, Goa
  • Alcock, A (1968) Materials for a carcinological fauna of India the Brachyura Oxyrhyncha The Baptist Mission Press 1 1-456 Available at - Pune University, Pune
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • Mandal, AK and Nandi, NC (1989) Fauna of Sundarban mangrove ecosystem, West Bengal, India Fauna of Conservations 3 35431 Available at - NIO, Goa
  • Chakraborty, SK and Choudhury, A (1992) Ecological studies on the zonation of Brachyuran crabs in a virgin mangrove island of Sundarbans, India Indian Journal of Marine Sciences The Marine Biological Association of India, Cochin 34 189-194 Available at - NIO, RC Kochi
  • 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 -
  • Ghosh, SK (1995) Crustacea: Decapoda: Grapsidae Estuarine ecosystem series, Part 2: Hugli Matla Estuary ZSI, Calcutta 229-248 Available at - NIO, Goa
  • Dineshbabu, AP; Durgekar, RN and Zacharia, PU (2011) Estuarine and marine decapods of Karnataka inventory Fishing Chimes Mr.J.V.H. Dixitulu 30 (10-11) 20-24 Available at -
  • 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

Page last updated on:2011-11-11

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