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The pectoral fins, second dorsal fin, and the lower lobe of the caudal fin usually have black tips. The pelvic fins and rarely the anal fin may also be black-tipped. The first dorsal fin and the upper lobe of the caudal fin typically have black edges. [3] Some larger individuals have unmarked or nearly unmarked fins. [5]
All the fins have black tips highlighted by lighter-colored borders, which are especially striking on the first dorsal fin and lower caudal fin lobe. Most blacktip reef sharks are no more than 1.6 m (5.2 ft) long, though rarely individuals may reach 1.8 m (5.9 ft) or possibly 2.0 m (6.6 ft). [ 3 ]
The shark catfishes form the family Pangasiidae. They are found in fresh and brackish waters across southern Asia , from Pakistan to Borneo . [ 1 ] Among the 30-odd members of this family is the plant-eating, endangered Mekong giant catfish Pangasianodon gigas , one of the largest known freshwater fish. [ 1 ]
Tete sea catfishes are occasionally available in the pet trade under a variety of names, including Colombian (or Columbian) shark, silver tipped shark, white tip shark catfish, black fin shark, Christian catfish, Jordan's catfish, and West American cat shark.
Dorsal fin of a shark. A dorsal fin is a fin on the back of most ... of catfish, [1] ... front edge and is covered with black spots. [4] The huge dorsal fin, ...
The anal fin is much larger than either dorsal fin; its base measures 13–18% of the total length and greatly exceeds the distance between the pelvic and anal fins, or between the dorsal fins. The caudal peduncle is laterally compressed, with the end of the anal fin very close to the caudal fin. The caudal fin comprises around a quarter of the ...
Pangasius is a genus of medium-large to very large shark catfishes native to fresh water in South and Southeast Asia. The term "pangasius" is sometimes used to specifically refer to the commercially important basa fish, P. bocourti. [1]
Pangasius larnaudii, the black ear catfish is a species of freshwater shark catfish endemic to Mekong and Chao Phraya basins. [1] [2]