Portunus granulatus   H. Milne Edwards,  1834 (Crab)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Malacostraca
Order:Decapoda
Family:Portunidae

Image copyrights: Guam

Description
Carapace granular, last spine of antero-lateral border slightly the largest. Penultimate segment of male abdomen not convex on outer borders.

Carapace depressed, a little over three quarters as long as broad, finely subtomentose, its surface cut up into well defined sub-regional elevations the convexities of which are granular. Front slightly receding, slightly prominent beyond the blunt inner supra-orbital angles and beyond the blunt inner supra-orbital angles and beyond the epistome, cut into four lobes of which the middle two are the smaller and less prominent and are almost coalescent. Supra-orbital border with two distinct features. Orbits not completely dorsal. Eyes not very large. Antero-external angle of merus of external maxillipeds considerably produced in a lateral direction. Chelipeds in the male about 2½ times the length of the carapace, more or less granular, the hand not or little less massive than the arm. Arms with 4 or 5 spines on the anterior border with 2 on the posterior border one submedian the other subterminal. First three pair of legs rather slender.

The pleopod is quite unlike that of any other species of Portunus and in the form of the tip shows resemblances to the genus Charybdis.


Synonym (s)
Neptunus (Achelous) granulatus Alcock, 1899
Lupea granulata H. Milne-Edwards, 1834

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Sandy

Biogeography


• Andaman and Nicobar Islands, Andaman Islands (Lat: 12.5) (Long: 92.75) INDIA
• Andaman and Nicobar Islands, Andaman Islands (Lat: 12.5) (Long: 92.75) INDIA
• Andaman and Nicobar Islands, Nicobar Island (Lat: 7.24) (Long: 93.74) INDIA
• West Coast, Malabar INDIA
• West Coast INDIA
• Lakshadweep INDIA
• Andaman and Nicobar Islands INDIA
• Red Sea
• INDIA
• MADAGASCAR
• SRI LANKA
• MAURITIUS
• Tamil Nadu, Gulf of Mannar INDIA
• Lakshadweep Islands (Lat: 8.28) (Long: 72.16) INDIA (Record: 01/1987-03/1987)
• Lakshadweep Islands (Lat: 11.68) (Long: 73.68) INDIA (Record: 01/1987-03/1987)

Literature Source(s)
  • Tikadar, BK; Daniel, A and Subbarao, NV (1986) Sea shore animals of Andaman and Nicobar Islands The Director, ZSI, Kolkatta 188 Available at - ZSI, Pune
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • Sankarankutty, C (1961) On Decapoda brachyura from the Andaman and Nicobar Islands 1. Families Portunidae, Ocypodidae, Grapsidae and Mictyridae Journal of the Marine Biological Association of India Marine Biological Association of India 3(1-2) 101-119 Available at - NIO, RC, Kochi
  • Kensley, B (1981) On the Zoogeography of Southern Afrian Decapod Crustacea, with a distributional checklist of the species Smithsonian Contributions to Zoology Smithsonian Institution Press, Washington, D.C. 338 23377 Available at - NIO, RC Kochi
  • 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
  • Florida Museum of Natural History Available at - http://www.flmnh.ufl.edu/
  • 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
  • Rao, GS; Suseelan, C and Kathirvel, M (1989) Crustacean resources of the Lakshadweep islands Marine living resources of the union territory of Lakshadweep: An indicative survey with suggestions for development Bulletin of Central Marine Research Institute CMFRI 43 72-76 Available at - http://eprints.cmfri.org.in/8213/1/Bulletin_No_43.pdf

Page last updated on:2011-04-21

Back to Search