This species (first thumbnail)
was captured in the Cantho province, Vietnam on the
24 March 2007 by the image contributor. Description:
Dorsal spines (total): 2; Dorsal soft rays (total):
6-8; Anal spines: 0; Anal soft rays: 30 - 33. Body
elongated, intermediate predorsal length (30.1-33.9%
SL). Short snout length (35.2-42.8% HL). Long caudal
peduncle (17.6-21.4% SL). Short mandibular barbels
(length 10.4-39.3% HL). Large eyes (19.2-25.5% HL).
Colouration: On live specimens, head and
body dorsally olive to greenish-grey, lower side of
flanks and belly silver or whitish. Dorsal, pectoral
and caudal fins yellowish, other fins hyaline.
Diet: An omnivorous fish, feeding mainly
on benthic animals such as mollusks and crustaceans.
During rainy seasons, Mekong specimens feed on fruits
and various debris. Remarks:
At present, this species is considered close to extinction
in Thailand.
Common
Name:
None
Synonyms:
None
Family:
Pangasiidae
Distribution:
Asia:
Lower reaches of the Chao Phraya, Bangpakong and Mekong
basins of the Indochinese region. Type locality:
Vietnam: Lower Mekong River Delta.
Size:
28.0cm. (11¾ins)
Temp:
23-28°C (73-83°F)
p.H.
6.0-7.5.
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. 2009. FishBase. World Wide Web electronic
publication. www.fishbase.org, version (08/2012).
Pouyaud, L., R. Gustiano and G.G. Teugels,
2002. Systematic revision of Pangasius polyuranodon
(Siluriformes, Pangasiidae) with description of two
new species. Cybium 26(4):243-252.
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