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Pangio myersi (Harry, 1949) is easily distinguished by its colour pattern consisting of ca. 8-11 broad, quadrangular and very regular black bars on an orange background (e. g., Smith, 1945, p. 300, fig. 62; aquarium specimen in Sterba, 1987: 216), contrasting very much with the pattern exhibited by P. kuhlii. The caudal fin often is entirely black or has, beside the large basal black blotches, a submarginal vertical bar which is absent in P. kuhlii (Fig. 15). Also, P. myersi, definitely known only from southeastern Thailand, apparently reaches a much larger size than P. kuhlii (67.2 mm SL, for wild caught specimens; aquarium specimens of P. myersi reach up to 100 mm SL; the largest P. kuhlii we have ever seen is a wild caught female, 63;0 mm SL, with distended belly (ZRC 17703-17728)).