Thalamita parvidens   (Rathbun,  1907) (Crab)
Organism information awaits expert curation
Class: Malacostraca

Carapace almost glabrous and with faintly distinguishable ridges- epibranchial interrupted only by the cervical groove, lateral cardiac, mesogastric and frontal. Front bilobed with a fairly distinct median notch, inner orbital lobe oblique and narrower than frontal lobe. Antero-lateral border of carapace with five sub-equal teeth, or fourth slightly smaller than rest, first or first three blunt. Basal part of all teeth granulated. Breadth of basal antennal joint more than diameter of orbit (1.16-1.33). Crest of basal antennal joint minutely serrated.
Cheliped unequal; anterior border of merus with three blunt teeth and few granules preceding them, upper surface of merus also granulated. Inner angle of carpus with a spine and outer side with blunt projections, ridges join spines, upper surface of carpus minutely granulated. Upper surface of propodus with two longitudinal ridges, inner one alone with a spine in the middle, spine on the proximal dorsal hinge in the form of a blunt projection. Upper surface of propodus including carina granulated, a single faint ridge on the outer surface of propodus entering fixed finger. Ventral proximal end of propodus minutely granulated. Fingers long, toothed; dactylus carrying a recurved tooth at its base.
Male abdomen consisting of five separate pieces with segments 3-5 fused together. Penultimate segment broader than long and with nearly parallel sides. End segment triangular in shape and distinctly broader than long.

Synonym (s)
Thalamita parvidens Stephenson, 1961
Thalamonyx parvidens Rathbun, 1907

Common Name (s)
Economic Importance and Threats

Habitat:  Coastal


• Tamil Nadu, Gulf of Mannar INDIA
• Tamil Nadu, Vedalai INDIA
• Palk Bay 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
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Marine Biological Station, Chennai, Tamil Nadu (2003) Checklist of marine fauna of Tamil Nadu Department of Environment, Government of Tamil Nadu Available at -
  • 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 -
  • 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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