FISHES OF WEST COAST OF PERU. 85 



long, nearly twice as long as horizontal diameter of eye ; interorbital 

 broad, flat ^r slightly concave; mouth small, lower jaw included; 

 maxillary not reaching ventral from anterior border of eye by a dis- 

 tance equal to pupil; teeth villiform, in broad bands, outer row on 

 upper jaw slightly enlarged; preorbital wider than eye; preopercle 

 strongly and evenly serrate; dorsal spines long, slender, the third 

 longest, the last considerably longer than the one before it; soft 

 dorsal low and evenly arched; caudal lunate; second anal spine a 

 little longer and stronger than the third ; ventrals reaching to within 

 two-thirds diameter of eye of vent ; pectorals short, their tips reach- 

 ing to below last dorsal spine; upper caudal lobe longer; scales 

 strongly ctenoid; lateral line strongly arched, parallel with contour 

 of back, becoming straight under posterior third of anal ; scales above 

 lateral line parallel with it, regular in their arrangement; preorbital 

 scaled ; subopercle scaled ; top of snout naked. 



Color in alcohol : Silvery brown ; a broad silvery lateral stripe, the 

 centers of the scales in this stripe dusky black, foraiing dark hori- 

 zontal lines along the rows of scales, these replaced by silvery lines 

 below; a blackish shoulder blotch as in nitidus and a dark area on 

 opercle; fins brownish. Description based on a specimen 21.5 cm. 

 long from Tumbes. 



The smaller specimens have D. XI, 15 and XII, 14, and are much 

 slenderer in form. 



This species ranges from Lower California to Peru ; very abundant 

 at Panama. 



Genus POMADASIS Lacepede. 



THE BURROS. 



KET TO SPECIES. 



a \ Dorsal spines XI or XII ; preorbital broad ; preopercle serrate ; fourth dor- 

 sal spine longest 1.9 to 2.25 in head; eye 4 to 4.62 in head schyri, ]^. 85. 



a^ Dorsal spines XIII ; preorbital narrow ; eye large, 3 to 3.5 in head ; fourth 

 dorsal spine longest, 1.5 to 1.66 in head hranicki, p. 86. 



114. POMADASIS SCHYRI Steindachncr. 

 RONCABOR. 



Pomadasys schyrir Steindachnek, Herpt.-ichthyol., Ergebnisse einer Reise 

 nach Siidamerika, Denkschr. Akad. Wiss. Wien, vol. 72, 1902, p. 27, 

 pi. 4, fig. 1 ; Guayaquil. 



One specimen, field No. 1005, 22 cm, long from Tumbes, taken with 

 a casting net at the mouth of the Tumbes River. 



Head 2.51 in length ; depth 2,62 ; eye 4.62 in head ; snout 3.08 ; inter- 

 orbital 4.1 (5,7 bone) ; maxillary 3,26; pectoral l,i5; D. XII, 13 (|) ; 

 40656°— Bull. 95—17 7 



