Charybdis (Charybdis) anisodon   (De Haan,  1850) (Crab)
Organism information awaits expert curation
Class: Malacostraca

Carapace convex, smooth and naked; regions ill-defined, following transverse ridges noticeable-protogastric, mesogastric interrupted and epibranchial interrupted in the middle of gastric region and by the cervical groove. Front cut into six teeth, median tooth a little more prominent than sub-median and with an almost straight border, sub-median similar in shape as median and at a higher plane, lateral as prominent as sub-median but narrow. Supra-orbital border with two distinct clefts. Antero-lateral border of carapace divided into six teeth, first two smaller than rest with rounded tips, second smallest, third and fourth sub-equal and broader than fifth, sixth a long spine almost pointing laterally and much more than twice the length of fifth.
Chelipeds slightly dissimilar in size. Anterior border of merus armed with two spines, posterior border unarmed. Carpus with the usual large spine on the inner side but three spines on the outer side represented by tubercles. Upper surface of propodus provided with two spines, but spine on the proximal hinge remaining as tubercle, second spine in the middle on the inner side of propodus. Dactylus longer than upper border of propodus. Posteriro border of propodus of natatory leg unarmed.
Male abdomen with transverse carinae on second and third segments; sixth segment broader than long and with convex borders.

Synonym (s)
Portunus (Thalamita) anisodon De Haan, 1850

Common Name (s)
Economic Importance and Threats

Habitat:  Coastal


• Tamil Nadu, Vedalai INDIA
• Tamil Nadu INDIA

Literature Source(s)
  • Tikader, BK (1982) The fauna of India (spiders: Araneae) ZSI, Calcutta 2(part 1-2) 1-536 Available at - NCL, Pune
  • Sankarankutty, C (1966) On Decapoda Brachyura from the Gulf of Mannar and Palk Bay Proceedings of the Symposium on Crustacea Marine Biological Association of India, Mandapam Camp Part I 347-362 Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • James, PSBR ; Thomas, PA ; Pillai, CSG and Achari Kumaraswamy, GP (1969) ´╗┐Catalogue of types and of sponges, corals, polychaetes, crabs and echinoderms in the reference collections of the Central Marine Fisheries Research Institute Bulletin of Central Marine Research Institute CMFRI, Cochin 7 1-66 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

Page last updated on:2011-10-07

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