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Bagrichthys obscurus Ng, 1999

Image contributors to this species:

Chaiwut Grudpan (1) Kamphol Udomrittiruj (1) Fishes of Mainland Southeast Asia (1)

ScotCat Sources:

Etymology = Genus Etymology = Species

Other Sources:

Fishbase  Search Google  All Catfish Species Inventory


Relevant Information:

Dorsal spines (total): 1 - 1; Dorsal soft rays (total): 7 - 7; Anal spines: 0; Anal soft rays: 7 – 10; Vertebrae: 45 – 47. A relatively small and narrow mouth opening; extremely reduced oral dentition; relatively short dorsal-fin spine with 15 or fewer serrae; both inner and outer mandibular barbels crenulated; a slender body (body  depth at anus 15.1-18.4% SL; depth of caudal peduncle 6.7-8.3% SL); a short adipose fin base (length 43.3-48.9% SL); the genital papilla in males touching the base of the first anal-fin ray; a uniformly brown body without both a pale midlateral stripe and pale blotches on the sides of the body. Remarks: Bagrichthys obscurus is described from drainages in Indochina. It is morphologically similar to and has been previously identified as B. macropterus, but can be differentiated from that species in having a uniformly brown body without a pale midlateral stripe and without pale blotches on the sides of the body, a more slender body, a shorter adipose-fin base, and the genital papilla in males meeting the base of the first anal-fin ray.

Common Name:

False Black Lancer






Asia: Mekong, Bang Pakong and Chao Phraya River basins. Type locality: Thailand: Roi Et Province, Lam Chi, 1.5 km below highway 23 bridge, 4 km W. of Selaphum. 


25cm SL ( 10ins)


24-27°C (75-81°F)




Froese, R. and D. Pauly. Editors. 2008.FishBase. World Wide Web electronic publication. www.fishbase.org, version (12/2008).
Ng, H.H., 1999. Bagrichthys obscurus, a new species of bagrid catfish from Indochina (Teleostei: Bagridae). Rev. Biol. Trop. 47(3):545-552.
Ferraris, C.J. Jr.,
2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.



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