Thryssocypris wongrati, a new anchovy-like cyprinid (Cypriniformes) from the Chao Phraya basin, Thailand

Thryssocypris wongrati, a new species of cyprinid from the Chao Phraya basin, Thailand, is distinguished from all other species of Thryssocypris by having a combination of the origin of the dorsal fin behind the origin of the anal fin, 37-40 lateral-line scales, 16 circumpeduncular scales, and a dark spot at the base of the caudal fin. Thryssocypris wongrati occupies 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.