Charybdis feriatus   Linnaeus,  1758 (Crab)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Malacostraca
Order:Decapoda
Family:Portunidae

Description
First tooth of anterolateral borders obliquely truncate on outer border; palm with 4 sharp spine in all. Anterolateral teeth broad at base, first anterior lobe bifid; 3 spine on anterior borders of arm; a cross on carapace.

Carapace not distinctly pilose, about two-thirds as long as broad, slightly convex, nearly smooth to the naked eye, the regions ill-defined. A finely granular curved line cross the anterior part of the gastric region; these are the only ridges on the carapace, and they become faint with age. The front is rather deeply cut into six teeth prominent regular blunt pointed teeth, not including the inner supra-orbital angles, none of which project much beyond the others. The antero-lateral borders are cut into six teeth including the outer orbital angles, of which the first is truncated and notched or bifid, the last is almost spine like but is little more salient than the others, while the other four are broad anteriorly-acuminate lobes. The chelipeds are nearly 2½ times the length of the carapace except for definitely placed costae and spines are smooth; the hands are a little unequal in size. The arm has three enlarged spines on the anterior(inner) border and a spinule at the far end of the inferior border, but the posterior border is unarmed.The wrist has the inner angle strongly spiniform and has three spinules and some smooth ridges on the outer surface. In both hands the fingers are strongly toothed, are as long as their palm. In the last pair of legs the merus is about three-fourths as long as broad and has a spine at far end of the posterior border. In the male the 6th tergum is much broader than long and has curved and gradually convergent sides.


Synonym (s)
Charybdis cruciata (Herbst, 1794)
(Junior synonym)

Common Name (s)
Economic Importance and Threats
Importance:  Commercial

Ecology
Habitat:  Estuarine, Rocky, Sandy, Muddy

Biogeography


• Orissa, Mahanadi Estuary (Lat: 20.32) (Long: 86.75) INDIA
• West Coast INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Andaman and Nicobar Islands INDIA
• Tamil Nadu, Kudankulam INDIA
• Karnataka INDIA (Record: 2001-2007)
• East Coast INDIA

Literature Source(s)
  • (2001) Invertebrate zoology collections Available at - http://goode.si.edu/mcs/iz/Query.php
  • Zoological Survey of India (Eds.) (1998) Fauna Of Mahanadi estuary, Orissa Estuarine ecosystem series no 3 ZSI, Kolkata 1-218 Available at - ZSI, Pune
  • 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
  • Raj, YL; Wesley, SG and Rajan, MP (2010) Status of Cu, Zn and Cr content in fin and shell fishes of Kudankulam coast, Gulf of Mannar, India South Indian Coastal and Marine Bulletin Suganthi Devadason Marine Research Institute, Tamil Nadu, India 2(1) 10-13 Available at - NIO, Goa
  • Sealifebase Available at - http://www.sealifebase.org/
  • 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 - http://eprints.cmfri.org.in/7950/1/Dineshbabu-Fishing_Chimes_30(10%2611).pdf

Page last updated on:2011-03-07

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