Abstract
Thryssocypris wongrati, a new species of cyprinid from the Chao Phraya basin, Thailand, is distinguished from all otherspecies of Thryssocypris by having a combination of the origin of the dorsal fin behind the origin of the anal fin, 37–40lateral-line scales, 16 circumpeduncular scales, and a dark spot at the base of the caudal fin. Thryssocypris wongrati oc-cupies the lower part of the Chao Phraya basin where it has been recorded from irrigation canals in Sing-Buri up to the most northern part of the basin in the Nan River in Phitsanulok Province.References
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