Walker and Radford: Eastern Pacific species of the genus Umbrina 



579 



Description Counts and measurements are given in 

 Tables 1-6. Soft rays of second dorsal fin 26-30; soft 

 anal rays 6-7; pectoral rays 14-19; gill rakers 16-21; 

 snout length greater than eye diameter (adults); pig- 

 ment inside operculum generally appears externally as 

 large, dark spot; dark pigment around pseudobranch 

 evident by 35-40 mm; barbel fully developed by 45 mm, 

 usually knobby between 30 and 45 mm; lateral line 

 scales 48-52, x 50.02, SE 0.05; nearly all brown 

 stripes present by 75-80 mm; dark, vertical bars 6-9, 

 occasionally and only on specimens < 100 mm; dorsal 

 fin dusky; pectoral, pelvic, anal and caudal fins usual- 

 ly with little or no pigment, caudal occasionally dusky. 



Distribution Bahia Magdalena and the southern Gulf 

 of California (south of 27°N) to northern Peru (incl. Isla 

 del Coco, Fig. 4), one specimen from Pisagua, Chile, 

 19°36'S, 70°13'W. Found in tide pools (juveniles) and 

 along beaches, to 36m. 



Umbrina reedi Gun t her 

 Figure 6 



Synonymy 



Umbrina reedi Giinther 1880:25 (original description: 

 holotype BMNH 1919.5.14.283; I. Juan Fernandez, 

 Chile). 



Diagnosis A large species of Umbrina (max. length 



650 mm) characterized by the following: inside gill 

 cover pale to lightly punctate; peritoneum dark ven- 

 trally and laterally, lighter dorsally; large, dark spot 

 in axil of pectoral fin; soft dorsal fin rays usually 24-25; 

 soft anal rays usually 9; pectoral rays usually 18; pro- 

 current caudal rays usually 9-10 -t- 8-9; dorsal spines 

 IX -I- 1; gill rakers usually 19-20; vertebrae 10 -t- 15; 

 barbel relatively short, stout; length of second anal 

 spine, X 14% SL; body depth, x 35%; eye length, x 7%; 

 upper jaw length, i 13%; pectoral fin length, x 23%. 



Description Counts and measurements are given in 

 Tables 1-6. Soft rays of second dorsal fin 21-26; soft 

 anal rays 8-10; pectoral rays 17-19; gill rakers 18-22; 

 body and caudal peduncle deep; snout length greater 

 than eye diameter at sizes greater than ~150mm; pec- 

 toral fins relatively long; upper jaw long; barbel bulbous 

 at 28mm, not fully developed until ~120mm; lateral 

 line scales 49-52, x 49.90, SE 0.17; caudal peduncle 

 and midlateral brown stripes evident by 120 mm; dor- 

 solateral stripes undifferentiated on most specimens, 

 appearing as irregular dashes of pigment; dorsal and 

 caudal fins dusky; pectoral, pelvic and anal fins dark 

 (pectorals frequently dusky), lighter on specimens less 

 than ~ 130 mm. 



Distribution Islands off Chile: Islas Juan Fernandez 

 (~33°40'S, 78°55'W) and San Felix (~26°17'S, 80° 

 06' W). From the surf zone to 30 m. 



