Leiocassis is a genus of bagrid catfishes found mostly in Southeast Asia with some species occurring in China.
The members of Leiocassis have an elongate narrow head and a prominently protruding snout.
Species This genus has a confused taxonomy and there is uncertainty surrounding the number of valid species. Certain East Asian bagrids formerly placed in this genus have been moved to Tachysurus. In 2006, Heok Hee Ng considered the genus Leiocassis to be restricted to Sundaic Southeast Asia and Borneo and only a handful of species as valid (L. aculeata, L. collina, L. hosii, L. micropogon, L. poeciloptera, and L. tenebrica).
There are currently 7 recognized species in this genus:
Leiocassis aculeata H. H. Ng & Hadiaty, 2005 Leiocassis bekantan H. H. Ng & H. H. Tan, 2018 Leiocassis collina H. H. Ng & K. K. P. Lim, 2006 Leiocassis micropogon (Bleeker, 1852) Leiocassis poeciloptera (Valenciennes, 1840) Leiocassis rudicula H. H. Ng & Hadiaty, 2019 Leiocassis tenebrica H. H. Ng & K. K. P. Lim, 2006
, both FishBase and WoRMS list 14 species.
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