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The bala shark (Balantiocheilos melanopterus), also known as the tricolor shark, tricolor sharkminnow, silver shark, or shark minnow, is a fish of the family Cyprinidae, and is one of the two species in the genus Balantiocheilos. [2] This species is not a true shark, but is commonly so called because of its torpedo-shaped body and large fins.
Cyprinid fishes of the genus Balantiocheilos are easily distinguished from other members of the family by the presence of thick and fleshy lips, the lower lip bearing a large lobe that is deeply incised medially along its posterior edge and black along the distal margins of the dorsal, caudal, anal and pelvic fins.
While the majority of sharks are solely marine, a small number of shark species have adapted to live in freshwater. The river sharks (of the genus Glyphis) live in freshwater and coastal marine environments. The bull shark (Carcharhinus leucas), can swim between salt and fresh water, and are found in tropical rivers around the world.
The bala shark is listed as a vulnerable species by the IUCN Red List, having become rare or extinct in many river basins of its native range. However, large numbers of the species are bred in captivity and exported from Thailand for the aquarium trade. This bala shark was photographed at Karlsruhe Zoo in Karlsruhe, Germany. Photograph credit ...
Sharkbook is a global database for identifying and tracking sharks, particularly whale sharks, using uploaded photos and videos.In addition to identifying and tracking sharks, the site allows people to "adopt a shark" and get updates on specific animals.
The burnt-tailed barb is closely related to the bala shark (B. melanopterus).It differs from its congener by a shorter snout, grooves which are posteriorly directed at rictus curved (vs. straight in the bala shark), and narrower black margins on the pelvic and anal fins (on distal third or less compared to the bala shark where the black margins are on distal half or more).
Natal homing, or natal philopatry, is the homing process by which some adult animals that have migrated away from their juvenile habitats return to their birthplace to reproduce.
Batoid gill slits lie under the pectoral fins on the underside, whereas a shark's are on the sides of the head. Most batoids have a flat, mantle-like body, with the exception of the guitarfishes and sawfishes, while most sharks have a spindle-shaped body. Many species of batoid have developed their pectoral fins into broad flat wing-like ...