Portunus sanguinolentus   Herbst,  1868 (Crab)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Malacostraca
Order:Decapoda
Family:Portunidae

Image copyrights: www.wetland.org.tw

Description
Size: Width of carapace 100 mm; length of carapace 45 mm.

Color: Dark grey, with three scarlet round spots on the posterior half of the carapace, one median and two lateral, each spot encircled by a whitish ring.

Carapace very broad, little convex, its length in the middle line half its breadth excluding the great lateral spines, finely granular everywhere in the young. Front cut into four sharp and very distinct teeth, not counting the inner-supra-orbital angles, of which the middle two are the less prominent and have projecting between and far beyond them the spine-like process of the epistome. Supra-orbital borders cut by 2 fissures into 3 lobes, the angles of the middle lobe not conspicuous. The antero-lateral borders very long and oblique, cut into 9 teeth (including the outer orbital angle) the last of which is about four times as long as any of the others. Antero-external angle of merus of external maxillipeds not produced. Chelipeds in the adult male about 2 2/3 times the length of the carapace, but rather less in the female and young male. Arm with 3 or 4 large spines on the anterior border, but without any on the posterior border. Hand and outer surface of wrist costate, the costae smooth. Legs smooth. A spinule near the far end of the posterior border of the carpus of the first two pairs. No spine on posterior border of merus of cheliped. Carapace marked with 3 large blood red spots.

Typically this species occurs in deeper water and cleaner habitats, from which it is brought to surface on rod and line. It ascends to the surface at night and swims as does Portunus pelagicus.


Synonym (s)
Portunus sanguinolentus Sankarankutty, 1961
Neptunus (Neptunus) sanguinolentus Lqurie, 1906
Cancer sanguinolentus Herbst, 1783
Portunus (Portunus) sanguinolentus Sakai, 1976

Common Name (s)
• Spotted Crab (English)
• Karchalo
Economic Importance and Threats
Importance:  Commercial
(It is highly prized as food. Its meat is used for medicine.)

Ecology
Habitat:  Demersal, Estuarine, Sandy, Muddy, Coastal

Biogeography


• Maharashtra, Mumbai (Lat: 18.98) (Long: 72.83) INDIA
• Andaman and Nicobar Islands, Nicobar Island (Lat: 7) (Long: 93) INDIA
• Kerala, Trivandrum (Lat: 8.5) (Long: 76.9) INDIA
• West Bengal, Sundarbans (Lat: 21.5) (Long: 88.17) INDIA
• Goa, Mandovi Estuary (Lat: 15.28) (Long: 73.52) INDIA
• Goa (Lat: 15.65) (Long: 73.74) INDIA
• West Coast INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Andaman and Nicobar Islands INDIA
• West Bengal INDIA
• Andhra Pradesh INDIA
• Tamil Nadu INDIA
• Andaman and Nicobar Islands, Andaman Islands INDIA
• Kerala INDIA
• Karnataka INDIA
• Goa INDIA
• Maharashtra INDIA
• Palk Bay (Lat: 9.5) (Long: 79.25) INDIA
• Tamilnadu, Arukkattuthurai INDIA
• Orissa INDIA
• Andaman and Nicobar Islands, Nicobars INDIA
• PAKISTAN
• SRI LANKA
• Tamil Nadu, Thondi INDIA (Record: 06/2005 - 05/2006)
• East Coast, Coromandel, Pulicat Lake INDIA
• Tamil Nadu, Chennai INDIA
• INDIA
• Tamil Nadu, Vedalai INDIA
• Tamil Nadu, Dhanushkodi INDIA
• Maharashtra, Malvan (Lat: 16.08) (Long: 73.05) INDIA
• Off Goa (Lat: 15.46) (Long: 73.78) INDIA (Record: 11/1988-10/1989) (Depth: 15-35 mts)
• West Bengal, Sandheads INDIA (Record: 20/06/1924)
• Andhra Pradesh, Kakinada Bay INDIA
• Tamil Nadu, Arukkattuthurai (Lat: 10.39) (Long: 79.86) INDIA (Record: 09/2007-08/2008)
• Tamil Nadu, Kodikkarai (Lat: 10.3) (Long: 79.85) INDIA (Record: 09/2007-08/2008)
• Tamil Nadu, Mallipattinam (Lat: 10.27) (Long: 79.32) INDIA (Record: 09/2007-08/2008)
• Tamil Nadu, Manalmelkudi (Lat: 10.42) (Long: 79.31) INDIA (Record: 09/2007-08/2008)
• Tamil Nadu, Adirampattinam (Lat: 9.95) (Long: 79.18) INDIA (Record: 09/2007-08/2008)
• Tamil Nadu, Thondi INDIA (Record: 07/2005-06/2006)
• Karnataka INDIA (Record: 2001-2007)
• Orissa, Puri INDIA (Record: 1987-2006)
• East Coast INDIA
• Kerala, Kochi INDIA
• Tamil Nadu, Kovalam INDIA
• Gujarat INDIA
• Andaman and Nicobar Islands, Little Andaman, Hut Bay (Lat: 10.64) (Long: 92.57) INDIA
• Andaman and Nicobar Islands, Little Andaman, Harbindar Bay INDIA
• Andaman and Nicobar Islands, Little Andaman, R.K. Pur INDIA
• Andaman and Nicobar Islands, Little Andaman, Butler Bay (Lat: 10.75) (Long: 92.5) INDIA
• Andaman and Nicobar Islands, Little Andaman, Netaji Nagar INDIA
• Andaman and Nicobar Islands, Little Andaman, Nanjappa Nagar INDIA

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Page last updated on:2012-01-11

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