The present paper reports on a field survey in Upper Moei River, at Phop Phra District, Tak
Province, Northwest Thailand, carried out in January and June 2010. Specimens encountered
belong to 5 orders, 8 families and 20 species of freshwater fishes. In particular, Schistura
waltoni, S. vinciguerrae, Lepidocephalichthys micropogon, Neonoemacheilus labeosus and
Gagata dolichonema are new records for Moei River; two species remain not fully identified
and, at the moment are reported as Devario sp. and Channa cf. gachua. The Thai local names
and distribution data of freshwater fishes are provided.