Redescription of the Striped Catfish Mystus tengara (Hamilton, 1822) (Siluriformes: Bagridae), India

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Published: Jan 26, 2013
DOI: https://doi.org/10.11609/JoTT.o2813.842

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A. Darshan
P.C. Mahanta
A. Barat
P. Kumar

Abstract

The Bagrid Catfish Mystus tengara was described from a pond located in India under the genus Pimelodus. The validity of the fish has been confused and has frequently been treated as a synonym of Mystus vittatus. In this study, the species is rediagnosed and redescribed on the basis of fresh material collected from the Ganga-Brahmaputra drainage. M. tengara is diagnosed from congeners in having a unique combination of the following characters: body with a distinct tympanic spot and four brown stripes which are separated by a pale narrow interspace; origin of adipose-fin not reaching the base of the last dorsal-fin ray, 31-42 gill rakers on first branchial arch, eye rounded with a diameter 19.0-23.8 % HL and dorsal spine length 12.3-17.2 % SL, maxillary barbel length 254.5-360.5 % HL. A key for the identification of Mystus species from Ganga-Bramaputra drainage is also provided.

Article Details

Issue
Vol. 5 No. 1 (2013)
Section
Short Communications

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