164 BULLETIN 189, UNITED STATES NATIONAL MUSEUM 



maxillary extending to or beyond vertical from posterior margin of 

 eye, 2.1 to 2.3 in head; teeth in jaws in bands, some of the outer ones 

 in upper jaw enlarged, the anterior ones more or less caninelike, 

 fixed, the rest mostly depressible; bands of minute teeth present also 

 on vomer and palatines; preopercle finely serrate above angle, the 

 antrorse spine at angle large and strong; gill rakers short, the longest 

 at angle scarcely half diameter of eye, becoming shorter gradually, 

 being represented by mere rudiments anteriorly, 13 to 15 more or 

 less developed on lower and 4 to 6 on upper limb of first arch; lateral 

 line not prominent, variable, many scales without pores in some indi- 

 viduals, missing on only a few scales in others; scales largely without 

 free edges, a patch under pectoral with free, ctenoid margins, scales 





Figure 36. — Alphestes jasciatus, new species. From the type, 204 mm. long, Lobos de 

 Afuera Bay, Peru (U.S.N.M. No. 127950). 



extending more or less on all the fins; dorsal not definitely notched, 

 the spines strong, the fourth generally the longest, about equal to 

 snout and eye, 2.1 to 2.6 in head, origin of fin a little in advance of 

 insertion of pectoral, its distance from tip of snout 2.5 to 2.8 in length, 

 soft part higher than spinous part, the longest rays at about beginning 

 of posterior third of fin, its margin broadly rounded; anal with 

 strong spines, the second somewhat enlarged, 2.25 to 2.7 in head, the 

 fin ending rather less than an eye's diameter in advance of end of 

 dorsal; ventral inserted behind base of pectoral, with a strong spine 

 contained 3.0 to 3.3 in head; pectoral large, generally reaching fully 

 as far back as ventral, with a broadly convex margin, 1.4 to 1.6 

 in head. 



Color of preserved specimens grayish to brownish, somewhat lighter 

 underneath; sides with irregular dark blotches, tending to form cross 

 bars, extending in the lighter colored specimens on the base of dorsal 

 and of anal; a dark band, about as wide as pupil, extending from eye 

 to shoulder, two less distinct ones from eye to preopercular margin, 

 one ending somewhat above angle of preopercle, and the lower one 



