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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:

Other Sources:

Relevant Information:

Description: 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. 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. Colouration: A uniformly brown body without both a pale midlateral stripe and pale blotches on the sides of the body. Etymology: The genus name Bagrichthys: from 'bagre', a South American name for a catfish, but is only used for African and Asian species. The specific name obscurus: from the Latin obscurus, meaning indistinct, in reference to the uniform brown colour of the fish.

Common Name:

False Black Lancer

Synonyms:

None

Family:

Bagridae

Distribution:

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.

Size:

25.0cm (10ins)

Temp:

24-27°C (75-81°F)

p.H.

6.5-7.0.

Reference:

Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
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.

Family: Bagridae Back to Ident-A-Cat Click on Thumbnails

Bagrichthys obscurus

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