FISHES OF WEST COAST OF PEKU. 145 



Coloration in spirits of typical examples, brownish, tinged with 

 yellow on belly; body crossed by six broad black crossbands, the 

 dark bands continued across dorsal fins; several indistinct dark 

 streaks radiating downward and backward from eye ; head, body, and 

 fins mottled with black or dark brown spots. 



In other examples, the coloration is very dark and there are no 

 traces of crossbands or spots ; in others, the spots are distinct only on 

 the head. In some of the specimens there is a very distinct black 

 area on anterior part of spinous dorsal, similar to that found in the 

 types of L. xanti. 



Color in life of " Chalapo " : Body very dark, covered with spots 

 which are almost black, on dusky olivaceous background (Coker). 



From a comparison of the type of L. xanti with examples of this 

 species and an example of L. jenkinsi from the Galapagos Islands, it 

 appears that the differences among the three species are very slight, 

 if they do not actually intergrade. The typical color pattern for 

 each is the same. 



The fin-counts of examples of each are as follows: L. xanti (type) 

 D. XVIII, 13; A. II, 19; of 12 specimens from San Lucas, one has 

 D. XVII, 12; five have D. XVIII, 12, and five have D. XIX, 12; 

 anal uniformly II, 19, One example from Lobos de Afuera in our 

 collection, D. XVIII, 13; A. II, 19. L. jenkimi (type and paratypes 

 reported for three specimens) D. XIX, 11 or 12 ; A. II, 17 or 18 ; one 

 specimen examined by us D. XIX, 11 ; A. II, 18. 



L. philippi. — Of 8 specimens in our collection, seven have D. XIX, 

 13 ; A. II, 20 ; one has D. XIX, 12 ; A. II, 20. Of six specimens from 

 Callao, Starks reports four with D. XIX, 13; A. II, 19; one with 

 D. XIX, 12; A. II, 19 and one with D. XVIII, 13; A. II, 18. 



L. jenkinsi has 55 to 61 pores in the lateral line, L, xanti has about 

 65, and L. philippi 69 to 73. 



L. jenkinsi and L. xanti have an outer row of stout, canine-like 

 teeth on vomer and palatines, intermingled with smaller teeth (in 

 some cases only visible by a glass of quite high magnification). In 

 L. philippic with the exception of the northernmost representative, 

 the vomerine teeth are in well defined patches and are usually of 

 more nearly uniform size. 



173. LEPISOMA PERUVIANA (Cuvier and Valenciennes). 



Clinus peruvianus Cuvier and Vaxenciennes, Hist. Nat. Poiss., vol. 11, 



1836, p. 283 (383) ; no locality given. 

 Auchenionchus crinitus Abbott, Marine Fishes of Peru, Proc. Acad. Nat. 



Sci. Phila., 1899, p. 361 ; not of Jenyns. 



The description of this species, based on a drawing by Feuillee, is 

 too incomplete for certain identification. Because of its close re- 

 semblance to L. variolosus some authors have considered it identical 



