THE SHORE FISHES OF PERU 211 



now broken); present length to base of caudal, 325 mm. It agrees 

 well with specimens from Panama. Its roundish body and numerous 

 gill rakers distinguish it from related species. 



Range. — Known from San Pedro, Calif., to Lobos de Tierra, Peru. 



Genus HEMICARANX Bleeker,5l862 



Maxillary narrow; teeth in each jaw in a single close-set series, 

 few or none on vomer, palatines, and tongue; second dorsal and anal 

 without evident lobes anteriorly, each with a broad conspicuous sheath 

 at base. Other characters are essentially as in Caranx. 



A single species, which apparenth^^ has not been described heretofore, 

 was taken on the coast of Peru. 



HEMICARANX SECHURAE. new species 



Figure 47 



Head 3.9 ; depth 2.1 ; D. VIII-I, 30 ; A. II-I, 25; P. 21. 



Body very strongly compressed; dorsal profile in advance of dorsal 

 fins rather evenly and more strongly convex than the ventral, with a 

 rather sharp edge in occipital region; head short, deep, depth at margin 

 of preopercle notably greater than its length; snout quite blunt, 4.15 

 in head; eye 3.8; interorbital 3.4; mouth oblique, nearly terminal; 

 maxillary extending approximately to anterior margin of pupil, 2.7 in 

 head; teeth in each jaw in a single close-set series; no teeth evident 

 on vomer, palatines, or tongue; gill rakers about three-fourths length of 

 eye, 20 on the lower and 7 on the upper limb of fu'st arch; lateral line 

 with a short, high arch, becoming straight over base of first anal 

 spine, the chord of arch 2.75 in straight part, and 4.5 in length; scutes 

 present throughout the straight part of lateral line, mostly strong and 

 deep, each provided with a spine, 45 more or less developed; scales 

 present on chest, but wanting on the head and median portion of back 

 in advance of dorsal fins; first dorsal composed of short, strong spines, 

 the fourth the longest, a little shorter than eye, the origin of fin a little 

 behind base of pectoral; second dorsal and anal similar, highest ante- 

 riorly, though without lobes, the longest rays in dorsal about as long as 

 postorbital part of head, decreasing very gradually in length posterior 

 to about the sixth one, none of the rays in the posterior fifth of the 

 fin exceeding length of eye; caudal rather deeply forked, the upper 

 lobe more pointed than the lower, also a little the longer, somewhat 

 longer than head; origin of anal about an eye's diameter posterior to 

 that of second dorsal, these fins coterminal; ventral small, inserted 

 under base of pectoral, 2.1 in head; pectoral a little longer than head, 

 somewhat falcate, reaching a little beyond origin of anal, 3.6 in length. 



Color brownish gray above; this color merging into the silvery gray 

 of lower parts; no trace of bars or bands; a dark blotch on upper part 



