278 PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



ish, the snout considerably protruding; mouth moderate, horizontal, the 

 maxillary extending to behind the pupil ; eye moderate, li in snout, 5^ 

 in head ; preopercle with its bony margin finely serrate ; teeth in villi- 

 forra bands, the outer row moderately enlarged in the upper jaw. Gill- 

 rakers moderate, bluntish. 



Spinous dorsal rather low, the fourth spine highest, about half the 

 length of the head. Soft dorsal long and low, its membranes scaly. 

 Caudal lunate, its upper lobe the longer. Anal small, the second spine 

 rather strong, 2§ in head. Pectorals short and small, not reaching half 

 way to vent and not nearly to tip of ventrals, their length two-thirds 

 that of head. 



Air-bladder well developed ; pyloric cceca 8. 



Head 3^ in length ; depth 3 J ; D.X-I, 27 ; A. II, 7. 



Lat. 1. with tubes on about 55 scales ; about 60 scales in a longitudinal 

 series. 



Color bright silvery, bluish above, with some brassy reflections ; sides 

 with narrow, distinct, undulating stripes of deep olive running from the 

 head and pectoral region upwards and backwards with some abrupt 

 curvatures to along the base of the dorsal, those below the lateral line 

 most undulated ; usually between each pair of bands are some small 

 olive spots, often forming regular series; no distinct vertical bars, faint 

 cross-shades rarely present ; cheeks clear white; lower fins yellow; up- 

 per fins and caudal plain clear brown; i^eritoneum and lining mem- 

 brane of opercles chiefly black. 



This species is the '' Yellow-finned Roncador" of the California fisher- 

 men, and occurs in abundance along the coast of California from Santa 

 Barbara to San Diego. Its southernmost record is the present one from 

 Pequeiia Bay. 



It was formerly erroneously, identified by us with the related species 

 JJinbrina xanti Gill (= Umbrina analis Giinther), which takes its place 

 to the southward (Cape San Lucas, Gill, to Tumbez, Peru, Steindachner.) 

 Specimens numbered 20,758, 26,849, and 26,864, distributed by the U. 

 S. Nat. Mus. in 1881, as Umhrlna xanti^ are all typical of Umhrina roncador. 

 (See Proc. U. S. Nat. Mus., 1881, 11.) 



Umbrina roncador closely resembles V. xanti, but is readily distin- 

 guished by the smaller scales (lat. 1. 45 to 50 in U. xanti), and by the 

 color, ZL xanti having broader and duller stripes, without the interme- 

 diate lines of dots. The peritoneum and lining of the opercle are paler 

 in U. xanti and the body is deeper and less gracefully formed. 

 29,370. Albula rulpes (L.) Goode. Pequena Bay. 

 29,388. Serranus nehnlifer (Grd.) Steind. Ascension Island. 

 29,375. Rarpe pulchra (Ayres) J. & G. Ascension Island. 

 29,369. Caulolatilus princeps (Jenyns) Gill. Ascension Island. 

 29,365. Scorpccna guttata Grd. Ascension Island. 

 29,381. Xenichtliys californiensis Steind. Cerros Island. 

 29,364, 29,352. Harpe pulchra (Ayres) J. & G. Guadalupe Island. 



