CONTRIBUTIONS TO NOKTH AMERICAN ICHTHYOLOGY - IV. 



dorsal spines to opposite the lower edge of the pectoral ; edge of opercle 

 and base of pectoral Mark; tins otherwise dull yellowish. Body ovate, 

 compressed, much elevated ; a regular and steep curve 1'roni snout to 

 dorsal. Month small, terminal; maxillary not reaching front of e\e. 

 I'reorbital alioiit as wide as eye, which is 4 in head. Outer teeth dis- 

 tant, little enlarged. Gill-rakers moderate. Membranes of dorsal and 

 anal somewhat scaly; dorsal fin deeply emarginate; second anal spine 

 longer and stronger than third; pectoral long, Teaching Tent; caudal 

 forked, the upper lobe the longer. Head 3f; depth L'A. 1). XII, 11; 

 A. Ill, Id; scales 1 ( )-."i< !-22. L. 12 inches. Pacific coast, from Santa 

 I arbara Islands southward. 

 (I'rintipoma davidsoni Sti-imlachner, Ichthyol. Buitriige, iii, 6, 1875.) 



87O. P. vaa-ginacus (Liuu.) J. & G. 



Golden olive above, silvery below, a dusky oblique bar running from 

 nape forward through eye, arid another running vertically downwards 

 from beginning of dorsal; behind this are several narrow longitudinal 

 stiipes of bright light blue edged above and below with black. Body 

 ovoid, compressed, and much elevated. Profile very steep. ^louth 

 small, oblique; maxillary scarcely reaching front of orbit; outer teeth 

 lather strong. F.\ es rather large. Second anal spine very strong. 

 longer than soft rays; pectoral long, reaching anal. Head." 1 , : depth L",. 

 D. XII, 17; A. Ill, 9. South Atlantic coast of United States to Lower 

 California. 



rii-i/iiiiniH I, inn. Syst. Nat.: /V/.w;//o//j rii-ii'mirum ( liintln-r. i. ','->: 

 i-irii'niiriiN (ill), I'roc. Arail. Nat . Sci. 1'liila. IHil. lUC; .In'moli-fiima In iiiiilns ( ;ill, 

 Proc. Acad. N.-n. Sci. Phila. Irilil, 107.) 



W71. P. biliBn<>afus(C.& V.) J. & G. 



IJody rather <leep; snout obtuse, shorter than e\e. which is one-third 

 length of head; month narrow, the maxillary reaching front of eye ; 

 preopercle serrulate, the teeth at the angle, stronger: dorsal spines 

 strong, the third spine longest, half length of head; second anal spine 

 extremely Mrong, much longer than dorsal spines: vertical tins scaly 

 half their height: caudal emar-inate. Two parallel brown hands on 

 cadi .Mile, one above the lateral line, the other from the eye to a brown 

 spot at the root of the caudal; adults becoming uniform in color; (ins 

 blackish. Head.'!:-; (in total, with caudal) ; depth L'ri. I). XII, 17; A. 

 1II,S; M-ales !)-.V. 1-1 I. (<ii< nlltcr.) Tropical A inei ica, on both coasts, 

 north to San Die.-n. 



(/'riali/iiniiii liiliiKii/inii ami im ltnii>t<riiin Cn\. A Val. v. '.'71 , .'?:!; I'l-intijioinn ntclnn- 

 opt(ntin ( .iiul IHT, i, -J-7: I'l-ixl-jumni m< liiimpti nun Stcind. Irhili. JJi-itr. viii, ">, 1879.) 



