Three Fish Species of The Genus Silurus Linnaeus, 1758, (Siluridae, Siluriformes) Newly Discovered in Northern Vietnam

Abstract

     Catfish genus Silurus Linneaus, 1758 (family Siluridae, oder Siluriformes) in Vietnam has been identified with 2 speciese, i.e. S. asotus Linneaus, 1758 distributed in provinces in Northen Vietnam, Southern China and Northen Laos and S. meridionalis Chen, 1977, distributed in Ky Cung river in Lang Son province, Southern China (Guangdong, Guangxii, Sichuan & Hubei provinces). Three new species were discovered recently S. caobangensis sp.n. collected from Bang river,Cao Bang province; S. langsonensis sp. n. collected fromKy Cung river, Lang Son province in 2009-2010; and S. dakrongensis sp. n collected from Dakrong river, Quang Tri province in 2012-2013.. This article provided description of these new species with their scientific names,specific differences in the genus and establishment ofidentification keys to species.