Scientific Name
Carcharhinus leucas    

by: Fish Lab. RCBA
Nomenclater (Müller & Henle, 1839) 
Family F029  Carcharhinidae
Holotype-Locality Antilles 
Habitats Coral、Benthos、Estuary、Fresh Water、Coastal、Lagoon  Economic Fish Yes 
Habitats Depth 1 - 152 M  Aquarium Fish No 
Poisonous Fish No  Edible Fish Yes 
Synonyms Carcharhinus amboinensis, Carcharhinus azureus, Carcharhinus nicaraguensis, Carcharhinus vanrooyeni, Carcharhinus zambezensis, Carcharias azureus, Carcharias brachyurus, Carcharias leucas, Carcharias spenceri, Carcharias zambezensis, Carharhinus vanrooyeni, Eulamia nicaraguensis, Galeolamna bogimba, Galeolamna greyi mckaili, Galeolamna mckaili, Galeolamna stevensi, Prionodon platyodon, Squalus obtusus, Squalus platyodon   
Reference Compagno (1984); Chen et al. (1996)  Schwartz, F.J. 1973 Schwartz, F. J. 1973 Accino, R.G. etc. 1982 J. A. Neer, B. A. Thompson etc. 2005 Matsumoto, R., S. Uchida, M. Toda, etc. 2006  文獻
Redlist Status IUCN Redlist: Lower Risk/near threatened(LR/nt)   
Common Name in Engulish River whaler; Shark; Zambezi shark; Swan River whaler; Bullshark; Cub shark; Bull shark; Ground shark; Freshwater whaler 
Chinese Name transliteration gong niou bai yan jiao, di ci jhen sha, da sha 
Distribution in Taiwan East 
Distribution in World global 
Max Lenth  350 cm 
Specimen List   Download 0 records Download 0 records
Characteristic A large, stout species; size up to about 3.4 m. Snout short and bluntly and broadly rounded; internarial width 0.7-1.0 times in preoral length; upper labial furrows short and inconspicuous; the 3rd gill slit 3.1-4.1 of total length, but less than 1/3 of 1st dorsal fin base; anteroposterior teeth formula in each jaw half 12-14/12-13; upper teeth with very broad, triangular, strongly serrated, erect to slightly oblique cusps; lower teeth with erect to semioblique, broad serracted cusps and arched roots. Interdorsal ridge absent. First dorsal fin large, with a pointed rounded apex; origin of 1st dorsal fin usually over or just behind pectoral insertions; length of inner margin of 1st dorsal fin short, less than 1/3 of dorsal fin base; 2nd dorsal fin large and high, its length 3.2-4.5 of total length; origin of second dorsal anterior to anal origin; pectoral fin large and broad, triangular, with narrow, pointed apices, length of anterior margins about 18-21% of total length; 198-227 total vertebral centra, 101-123 precaudal centra. 
Habitats A coastal, estuarine, riverine and lacustrine shark usually found close inshore in marine habitats, in water 0-152 m depth. Viviparous, with a yolk-sac placenta; number of young 1-13 per litter; some females may give birth to young in fresh water lakes su 
Distribution Wide distribute along the continental coasts of all tropical and subtropical seas and sometimes traveling far up warm rivers and into freshwater lakes. In Taiwan, this species were caught by longliner from northeastern and eastern waters uncommonly. 
Utility An important fisheries species. It is caught mainly with longlines and hook-and-line gear and utilized fresh, fresh-frozen or smoked for human consumption; its hide is used for leather, its fins for shark-fin soup, and its liver for oil, which is extracte 
The information about Characteristic, Habitats and Utility was Prepared By Shou-Cheng Chung, 12/1/2004