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Issue: Vol. 4420 No. 3: 17 May 2018
Type: Article
Published: 2018-05-17
DOI: 10.11646/zootaxa.4420.3.6
Page range: 405–414
Abstract views: 46
PDF downloaded: 2

Exostoma ericinum, a new glyptosternine catfish from southwestern China (Teleostei: Siluriformes: Sisoridae)

c/o Lee Kong Chian Natural History Museum, 2 Conservatory Drive, Singapore 117377.
Pisces Ostariophysi Sisoroidea Glyptosterninae Irrawaddy Yunnan

Abstract

A new species of glyptosternine catfish in the genus Exostoma is described in this study. The new species, E. ericinum, is known from the upper Dayingjiang (=Taping River) drainage in southwestern China and is distinguished from congeners in having an unique combination of the following characters: 42–44 vertebrae; parallel striae on anterolateral surfaces of lips and lower surface of maxillary barbel; interorbital distance 26–31% HL; preanal length 67.7–70.5% SL; body depth at anus 10.4–12.0% SL (1.4–1.9 times in caudal peduncle depth); length of adipose-fin base 39.5–43.0% SL; lacking an incision at posterior extremity of adipose-fin base; caudal peduncle length 23.2–26.2% SL; caudal peduncle depth 5.7–7.9% SL; and caudal-fin lobes with slightly concave posterior margin.

 

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