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Fisheries Research Institute Malaysia
 
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Taxonomy Name Carcharhinus leucas
Class Chondrichthyes
Order Carcharhiniformes
Genus Carcharhinus
Family Carcharhinidae
DOF Valid Name Jerung sapi
Common Name Freshwater whaler, River whaler, Swan river whaler
Fish Base Name Bull shark
Local Name Yu bekeng, Yu ganas, Yu garang
Synonym
Original author Muller & Henle, 1839
Body Color Dorsal surface grey; ventral surface pale; an indistinct pale stripe on each flank. The body is predominantly grey with a pale to white underside. Juveniles have black tips(particularly the caudal, pectoral, second dorsal and anal fins); upper caudal fin with a thin dusky posterior margin which fade with age.
Spesific Description Snout short and blunt. Labial furrows short and insconspicuous. Eyes small. Upper teeth erect to slightly oblique, broadly triangular, serrated; lower teeth similar but more slender. Viviparous. Gives birth to litter of up to 13 young. Size born 56-81 cm. Dept range 1-152 m, usually 1-30 m