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Redescription of Silurus burmanensis Thant 1967

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#1 scotcat



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Posted 14 October 2010 - 09:44 PM

Zootaxa 2647: 6168 (2010) www.mapress.com/zootaxa/

Redescription of Silurus burmanensis Thant 1967: a Silurus not a Pterocryptis (Teleostei: Siluriformes: Siluridae)

Ralf Britz & Tin Win

The silurid species Silurus burmanensis is redescribed based on a recently collected specimen from the type locality. Based on its characters we conclude that S. burmanensis is not a member of the genus Pterocryptis, as suggested previously, but a valid species of Silurus. It seems closely related to, but sufficiently distinct from, the two Yunnanese species of Silurus described by Regan (1904, 1907). Silurus burmanensis thus represents the southwestern most occurrence of a species of the genus Silurus in Asia.

Silurus burmanensis Thant 1967, described from Inle Lake in the Shan states in Myanmar, has remained one of the puzzling taxa among catfishes of the family Siluridae. Bornbusch (1991) suggested that S. burmanensisis a species of the genus Pterocryptis Peters. It was subsequently considered a junior synonym of Silurichthys berdmorei Blyth by Talwar & Jhingran (1992, incorrectly spelled Silurus burmanicus on p. 588), a species included in Pterocryptis by Bornbusch (1991). It was also treated as a member of Pterocryptis by Ferraris (2007). Since its description, Silurus burmanensis had not been collected again, although Inle Lake is one of the best explored places in Myanmar. A recent collection of a single specimen from the Inle Lake area offered the opportunity to study this catfish species in more detail and we provide a description of our findings in this paper.

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