Carcharhinus obscurus   (Lesueur,  1818) (Fish)
Organism information awaits expert curation
Class: Elasmobranchii

Size: 364 cm- 420 cm (max.); 69-102 cm at birth; 250 cm TL.

Weight: 346.5kg

Colour: Tips of most fins dusky or plain.

Body slender to moderately stout, snout bluntly round, length of snout less than or equal to mouth width, interdorsal ridge present. First dorsal fin origin usually over or slightly anterior to the pectoral free rear tips; low and moderately round at apex; pectoral fin long and tapered with curve or falcate; triangular saw edged upper teeth.

Max. age reported: 40 years

Synonym (s)
Carcharhinus iranzae Fourmanoir, 1961
(Junior synonym)
Carcharhinus obscurella Deng, Xiong & Zhan, 1981
Carcharias macrurus Ramsay & Ogilby, 1887
Carcharinus iranzae Fourmanoir, 1961
Carcharinus obscurus (Lesueur, 1818)
Eulamia obscura (Lesueur, 1818)
Galeolamna eblis Whitley, 1944
Galeolamna macrurus (Ramsay & Ogilby, 1887)
Prionodon obvelatus Valenciennes, 1844
Squalus obscurus Lesueur, 1818

Common Name (s)
• Dusky Shark (English)
Economic Importance and Threats
Importance:  Commercial, Dangers
(Meat, liver, cartilage, fins, hide. Liver is used for extraction of vitamin 'A', cartilage.

Habitat:  Pelagic, Reef Associated, Coastal
Trophic Level:  Secondary Consumer
Prey:  Bony fishes, sharks, skates, rays, cephalopods, crustaceans and gastropods.
IUCN Status:  Vulnerable


• Southwest Coast INDIA

Literature Source(s)
  • Raje, SG; Sivakami, S; Mohanraj, G; Manoj Kumar, PP; Raju, A and Joshi, KK (2007) An atlas on the Elasmobranch fishery resources of India CMFRI Special publication CMFRI, Cochin, India. 95 253pp Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • (2003) IUCN Red list of threatened species Available at -

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