50 



Fig. 22: Lateral view of some 

 species of Phoxinus, showing 

 body lateral line and stripes. 

 A: P. neogaeus (ANSP 48468. 



51.0 mm SL): B: P. oreas 

 (KU 3254, 47.6 mm SL); C: 

 P. etythrogaster (KU uncat.. 



30.0 mm SL): D: P. erythro- 

 gaster (KU uncat., 46.0 mm 

 SL): E: P. phoxinus (KU 

 22850, 27.4 mm SL): F: P. 

 phoxinus (AMNH 71940, 



52.1 mm SL). Scale bars = 1 

 mm. 



and the outgroups comparison, I interpret the elongated ellipsoidal type the plesiomorphic 

 condition, and the linear and the short ellipsoidal types of the axis independently derived 

 from the plesiomorphic condition. 



Lateral Line System (Fig.22A-F) 



The lateral line system allows the fish to perceive a small pressure change in the sur- 

 rounding water (Harder 1975). The lateral line system in cyprinids is composed of two 

 sections, the cephalic and body lateral line. In cyprinids, the cephalic lateral line consists 



