12268 Nemacheilus masyae Smith, 1933 Nemacheilidae Brook loaches Cypriniformes Teleostei Arrow loach Asia: western Malaysia, Peninsular Thailand, the Meklong and part of the Mae Nam Chao Phraya basins (Ref. 39226). Likely to occur in the Mekong basin (Ref. 12693). UMMZ 195915 12 N 102 E 1965 Nemacheilus masyae NIFI 1927 8 N 98 E 1985 Nemacheilus masyae CMK 5180 8 N 98 E 1985 Nemacheilus masyae