Barbonymus altus (Günther, 1868)
Red tailed tinfoil
Pla kra hea tong,  Pla mong ka,  Pla pak,  Pla ta pien tong,  ปลากระแหทอง,  ปลาตะเพียนทอง,  ปลาปาก,  ปลาโมงค่า,  Red tailed tinfoil
Barbonymus altus
photo by Warren, T.

Family:  Cyprinidae (Minnows or carps), subfamily: Cyprininae
Max. size:  25 cm TL (male/unsexed)
Environment:  benthopelagic; freshwater, potamodromous
Distribution:  Asia: Mekong and Chao Phraya basins (Ref. 27732). Recorded from the Maeklong, Peninsular and Southeast Thailand river systems (Ref. 26336).
Diagnosis:  Broad red distal margin with no black submarginal stripe along each lobe of the caudal fin; red pelvic and anal fins; a black distal blotch on the dorsal fin; the body depth 1.8-2.2 times in standard length (Ref. 27732).
Biology:  Occurs at midwater depths in large and medium-sized rivers and floodplains. Feeds on various plant and animal matter. Commonly found near villages where it feeds on organic detritus disposed of by humans (Ref. 12693). Reported to be occasionally poisonous, causing vomiting, due the fruits it eats (Ref. 12369). Colonizes inundated forests and adults migrate back to the river in October. Young of the year follow thereafter when the water levels recede. Large-sized fish are marketed fresh while smaller ones are used to make prahoc and nuoc mam (Ref. 12693). Popular fish in the aquarium trade where it is sold under the name of "tinfoil barb" (Ref. 12693). Captured from the wild for the ornamental fish trade in Thailand (Ref. 6459). Cultured in floating cages in Viet Nam (Ref. 12693).
IUCN Red List Status: Least Concern (LC); Date assessed: 25 January 2019 Ref. (130435)
Threat to humans:  harmless
Country info:  Occurs in the Mekong, Chao Phraya (Ref. 27732), Maeklong, Peninsular and Southeast Thailand river systems (Ref. 26336 ). Found in Bangkok, Paknam and Kemarat. Captured from the wild for the ornamental fish trade (Ref. 6459). Museum: Mekong mainstream near Chiang Sen, CAS 96265 (Ref. 5515); also from Phetchaburi, Nakhon Sawan, Chai Nat, Nakhon Phanom, Nong Khai and Surat Thani (Ref. 37773). Also Ref. 1632, 9648, 36654


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