Varuna litterata   (Fabricius,  1798) (Crab)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Malacostraca
Order:Decapoda
Family:Varunidae

Image copyrights: Hsi-Te Shih

Description
Size: Length of carapace: 38 mm; breadth of carapace: 41 mm.

Color: Mottled black and brown.

Last three joints of legs compressed and plumed for swimming. No fleshy lobe at the base of the fingers of the chelipeds.

Carapace curiously pitted and frosted above, the regions well enough defined by grooves, which is places are broad shallow and uneven. The borders of the carapace are thin and are sharply defined and finely beaded or milled. The anterolateral borders are arched and are cut into three teeth. Including the outer orbital angle. The postero-lateral boundary of the carapace on each side, is a distinct facet. The chelipeds vary, according to sex and age, from a little over once to a little over twice the length of the carapace. The 2nd and 3rd pair of legs, which are about equal, are over 1½ times the length of the carapace. The first pair are little more than a dactyl length, the 4th pair a little less than a dactyl-length longer than the carapace. The only armature of the legs, which are typical swimming paddles, is a sub-terminal spine on the anterior border of the meropodite.

It has the habit of clinging on to logs or driftwood.


Synonym (s)
Cancer litteratus Fabricius, 1798
Trichopus litteratus De Haan, 1850
Varuna litterata Miers, 1876
Varuna litterata Alcock, 1900
Varuna litterata Sakai, 1976
Varuna litterata Chakraborty, Choudhury & Deb, 1986
Alpheus litteratus Weber, 1795
Cancer litterata Fabricius, 1798
Varuna tomentosa Pfeffer, 1889

Common Name (s)
• Chiti Kankra
Economic Importance and Threats
Importance:  Commercial
(Edible)

Ecology
Habitat:  Reef Associated, Estuarine, Open Sea, Coastal

Biogeography


• West Bengal, Sundarbans (Lat: 21.5) (Long: 88.17) INDIA
• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• West Coast INDIA
• West Bengal INDIA
• INDIA
• MADAGASCAR
• Gujarat, Kolak INDIA
• Orissa INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Palk Bay INDIA
• Maharashtra INDIA
• Palk Bay (Lat: 9.5) (Long: 79.25) INDIA
• Orissa, Chilika Lake INDIA (Record: 1923-1987)
• West Bengal, Raichak INDIA (Record: 00/12/1983)
• West Bengal, Geonkhali INDIA (Record: 22/03/1985)
• West Bengal, Ballykhal INDIA
• West Bengal, Chandannagar INDIA (Record: 31/03/1989)
• Andhra Pradesh INDIA
• Kerala INDIA
• Tamil Nadu INDIA
• Karnataka, Netrani Island (Lat: 14.03) (Long: 74.55) INDIA (Record: 05/2006) (Depth: 10-15 mts)
• West Bengal, Sundarbans INDIA
• West Bengal, Majerchar INDIA (Record: 08/04/1989)
• West Bengal, Phuleshwar INDIA (Record: 04/04/1989)
• West Bengal, Sibganj INDIA (Record: 31/03/1989)
• Andaman and Nicobar Islands INDIA
• Tamil Nadu, Palk Bay INDIA
• Karnataka INDIA (Record: 2001-2007)
• Orissa, Chilika Lake (Lat: 19.46) (Long: 85.1) INDIA
• Orissa, Chilika Lake (Lat: 19.9) (Long: 85.58) INDIA
• Tamil Nadu, Pulicat Lake (Lat: 13.41) (Long: 80.05) INDIA
• Tamil Nadu, Pulicat Lake (Lat: 13.91) (Long: 80.31) INDIA
• West Bengal (Lat: 21.16) (Long: 85.83) INDIA
• West Bengal (Lat: 21.63) (Long: 89.83) INDIA
• West Bengal, Kolkata INDIA
• West Bengal, Haora INDIA
• West Bengal, Hugli Estuary INDIA
• West Bengal, Nadia INDIA
• West Bengal, Bangaon, Ichhamati River INDIA
• West Bengal, Digha Coast (Lat: 21.61) (Long: 87.53) INDIA
• Tamil Nadu, Adyar Backwaters INDIA
• Tamil Nadu, Cooum Estuary (Lat: 13.16) (Long: 80.26) INDIA

Literature Source(s)
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Page last updated on:2012-02-27

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