Siamese bala-shak

Description

The burnt-tailed barb (Balantiocheilos ambusticauda),also known as Siamese bala-shark,is a possibly extinct freshwater fish species from the Cyprinidae family.It is or was endemic to the Mae Klong and Chao Phraya River basins in Thailand.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).