Glyphis gangeticus (Müller & Henle, 1839)
Ganges shark
Glyphis gangeticus
photo by FAO

 Family:  Carcharhinidae (Requiem sharks)
 Max. size:  204 cm TL (male/unsexed)
 Environment:  demersal, amphidromous
 Distribution:  Indo-West Pacific: Hooghly River, Ganges system, West Bengal, India, and likely from the vicinity of Karachi, Pakistan. Reported from Taiwan. (Ref. 5193)
 Diagnosis:   
 Biology:  Biology poorly known. But its minute eyes suggest that it may be adapted to turbid water with poor visibility, as in large tropical rivers and muddy estuaries. Newborn specimens are from 56 to 61 cm long. Viviparous (Ref. 50449). Its notoriety may have stemmed from its widespread confusion with C. leucas. But this species is potentially dangerous as well because of its size and large teeth, though its reputation as a man-eater is still unproven.
 IUCN Red List Status: Critically Endangered (A2cde; C2b) (Ref. 96402)
 Threat to humans:  traumatogenic
 Country info:  Outside distributional range, occurrence needs further confirmation. As ?Carcharinus gangeticus, recorded in Lake Naujan, Mindoro (Ref. 5517). As ?Carcharias gangeticus; records from Manila Bay, Cebu Agusan River & Saug River (Davao), Jolo Is & Sitankai (Sulu), Lake Naujan (Mindoro) (Ref. 280). Nominal records of Glyphis gangeticus from the Philippines cannot be confirmed; these may be based in whole or in part on Carcharhinus leucas. In the Western Pacific, three other Glyphis species are known and maybe wider-ranging (Ref. 47737).

 Entered by: Carpenter, Kent E. - 15.06.92
 Modified by: Luna, Susan M. - 27.01.04
 Checked by: Luna, Susan M. - 18.08.94

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