Walker and Radford: Eastern Pacific species of the genus Umbnna 



577 



Figure 2 



Geographic distribution of Umbrina bussingi (O), U. dorsalis (•), U. analis (•), and U. 

 wintersteeni n. sp. (A). 



usually present by 50-65 mm; 

 barbel fully developed by ~70 

 mm, indistinguishable or flat 

 at sizes <30mm, bulbous be- 

 tween ~30 and 70 mm; lateral 

 line scales 49-54, x 50.85, SE 

 0.04; virtually all brown 

 stripes present by 70 mm; 5-8 

 dark, vertical bars occasional- 

 ly on specimens 25-180 mm, 

 usually faint when >80mm; 

 dorsal fin dusky at most sizes; 

 pectoral, pelvic, anal, and 

 caudal fins usually with little 

 or no pigment, caudal occa- 

 sionally dusky. 



Distribution Point Concep- 

 tion to Bahia Magdalena and 

 disjunctly in the northern Gulf 

 of California, north of 27°N 

 (Fig. 4). Taken in bays and the 

 surf zone to ~45m (Miller and 

 Lea 1972). 



Umbrina xanti Gill 

 Figure 5 



Synonymy 



Umbrina xanti Gill 1862:257- 

 258 (original description: 

 syntypes USNM 7156, 

 USNM 2996, USNM 3693, 

 USNM 3694, Cabo San 

 Lucas, Baja California Sur; 

 lectotype USNM 7156 (79 



Figure 3 



Umbrina roncador, 217mmSL, SIO 64-65. 



