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Systematics and Geographical Distribution of the Asian Silurid Catfish Genus Wallago, with a Key to the Species

Tyson R. Roberts
Copeia
Vol. 1982, No. 4 (Dec. 21, 1982), pp. 890-894
DOI: 10.2307/1444099
Stable URL: http://www.jstor.org/stable/1444099
Page Count: 5
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Systematics and Geographical Distribution of the Asian Silurid Catfish Genus Wallago, with a Key to the Species
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Abstract

The large, predatory catfishes of the South and Southeast Asian silurid genus Wallago comprise three species. Two species are very different from each other and widely distributed: W. attu occurs throughout the Indian subcontinent and in Burma, Thailand, Vietnam, Kampuchea, the Malay peninsula, Sumatra and Java but is absent in Borneo; W. leerii occurs in Borneo, Sumatra, the Malay peninsula, Thailand, Vietnam and Kampuchea. A third species, W. maculatus, very similar to W. leerii, is known only from the Kinabatangan River in Northeast Borneo. Wallago nebulosus is a junior synonym of W. leerii, and W. tweediei is tentatively identified as a large W. leerii. W. miostoma and W. krattensis are referred to the silurid genus Ompok.

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