32 



Fig.l 1: Breast scales and their tubercles (A-C. scale bars = 0.3 mm), and scales on caudal peduncle 

 and their tubercles (D-F, scale bars = 1 mm) in breeding males in hemitremians. A: Eupallasella per- 

 cnurus (MCZ 32369, 99.2 mm SL); B: Margariscus margarita (KU 8519. 102.5 mm SL): C: Pho- 

 xinus oreas (KU 3265, 43.5 mm SL); D: Campostoma anomalum (KU 20371, 121.5 mm SL): E: 

 Clinostomus funduloides (KU 3262. 62.0 mm SL); F: Phoxinus erythrogaster (KU uncat.. 47.0 mm 

 SL). 



In most members of the ingroup and in the outgroups, the breast seales have a smooth 

 margin (Fig. IIA). In Couesius and Margariscus of the ingroups, the apical (posterior) 

 margin of the breast scales is serrated (Fig.l IB). Having studied all genera of the out- 

 groups, I did not find a similar condition on the breast scales in the outgroups. A serra- 



