96 



Fig. 57: Maxilla of Phoxinus (a: lateral view; b: medial view). A: P. oreas (KU 3259, 55.0 mm SL); 

 B: P. phoxinus (CNUC uncat, 76.0 mm TL); C: P. neogaeus (KU 8521, 53.0 mm SL). Scale bars = 

 1 mm. 



oreas, neogaeus, cumberlandensis, brachyurus, tennesseensis, erythro gaster, and phoxi- 

 nus (TS 98[1]); it is sharp and less developed in P. eos (TS 98[0]); it is almost absent in 

 P. issykkulensis (TS 98[2]). 



In the outgroups, the anteromedial process is sharp. The presence of the blunt process and 

 the very small process are proposed herein to be derived independently. 

 The anterior ascending process (Fig.57C) was found on the dorsal side of the anterome- 

 dial process and extends dorsally. The process is lower, almost absent in P. erythrogaster 



