466 BULLETIN 189, UNITED STATES NATIONAL MUSEUM 



ventral fins of about equal size, the one of ocular side not quite on 

 ventral ridge, 2.9 to 3.3 in head; pectorals more or less rounded, the 

 one on ocular side somewhat the longer, 1.9 to 2.25, and the one of 

 blind 2.5 to 2.75 in head. 



Color of body and unpaired fins brownish to gray, with dark 

 blotches, and some specimens also with pale spots, especially distinct 

 on caudal and posterior parts of dorsal and anal; pectoral and ventral 

 paler than body, with small dark spots, those of pectoral arranged in 

 cross rows in some specimens. 



Four specimens, 230 to 610 mm. (185 to 512 mm. to base of caudal) 

 long, taken at Cabo Blanco and at Lobos de Tierra, are included in 

 the collection furnished by the Mission and form the basis for 

 the description offered. The largest one was caught on a line trawl 

 in about 12 fathoms, and the others were taken with a seine. These 

 seem to be identical with others from Panama Bay, with which they 

 were compared. 



This species is close to P. adspersus, from which it differs in having 

 cycloid scales on the ocular side, fewer and rather coarser gill rakers, 

 and a slightly longer arch in the lateral line. 



Range. — Baja California to northern Peru, and the Galdpagos 



Islands. 



Genus CYCLOPSETTA Gill, 1889 



Body oblong; interorbital flat, narrow or of moderate width, similar 

 in both sexes; mouth large, oblique; lower jaw included; maxillary 

 reaching under, or more usually beyond middle of eye, often fully half 

 length of head; teeth in a single series in each jaw, upper jaw anteriorly 

 with a pair of canines, its lateral teeth rather small, the lateral ones 

 of lower jaw all strong, notably larger than those of upper jaw; gill 

 rakers few, very short, sometimes broad and with several spines; 

 lateral line nearly straight, with or without a supratemporal branch; 

 scales small, cycloid or ctenoid; first ray of dorsal in advance of upper 

 eye, generally about over posterior nostril; none of the rays of pectoral 

 produced. 



A single species, previously known only from Panama Bay, is herein 

 reported from Peru. 



CYCLOPSETTA QUERNA (Jordan and Bollman) 



Lenguado 



Azevia querna Jordan and Bollman, 1890, p. 174, Panama Bay (original descrip- 

 tion; compared with A. panamensis) . 



Cyclopsetla querna Jordan and Evermann, 1898, p. 2675 (reference; descrip- 

 tion). — Meek and Hildebrand, 1928, p. 991, Panama Bay (synonymy; 

 description; range). 



Head 3.5, 3.6; depth 2.2, 2.2; D. 88, 89; A. 72, 74; P. 16, 17 on ocular 

 side, 14, 14 on blind side; scales 90, 98. 



Body moderately elongate, rather thin; profile convex over head; 



