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BULLETIN 95, UNITED STATES NATIONAL MUSEUM. 



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weak; ventrals moderate; 

 pectoral long and. falcate, 

 usually reaching to below 

 origin of soft dorsal. 



Color in alcohol, dusky 

 olive, with silvery or yel- 

 lowish tints on belly and 

 lower part of sides; centers 

 of scales dark, these forming 

 horizontal lines, most dis- 

 tinct ventrally; fins dusky, 

 ventrals blackish ; pectoral 

 black in axil on upper base. 



Color in life of a specimen 

 from Guanape, sides show- 

 ing various metallic tints 

 when freshl}^ taken; rather 

 dark above lateral line, nine 

 or more rather indistinct 

 stripes below lateral line. 



Field No. 04420 from Gua- 

 nape is abnormal in that it 

 has no ventral fins. There is 

 no trace of them, indicating 

 that it lacked them at birth. 



The young vary some in 

 form and coloration. 



A specimen 6 cm. long has 

 head 2.8 in length; depth 

 3.33 ; eye 3.75 in head ; snout 

 3.6; maxillary 3.6; inter- 

 orbital 4.5; pectoral 1.5; 

 D. XIII, 14; A. Ill, 13; 

 pores 54. 



Color in life of small speci- 

 mens from Lobos de Afuera. 

 dusky olive above, white 

 below; two black stripes on 

 side, the first from upper 

 edge of eye along side of 

 body, the second from mid- 

 dle of eye to base of caudal. 



Individuals 4 cm. long 

 have a similar coloration 

 and an elliptical black area 

 at base of caudal. 



