THE SHORE FISHES OF PERU 



471 



that of blind side, 2.3, 2.1 in head; pectoral on ocular side with third 

 ray produced, 1.25, 1.25 in head, that of blind side broken in specimens 

 at hand. 



Color of type grayish brown; a large dark area behind margin of 

 opercle, with a long backward extension; body elsewhere with indefi- 

 nite dark markings; fins paler than body, with dark specks; pectoral 

 with a dark bar on distal fourth. The larger paratype, a specimen 

 long in alcohol, rather faded, yet with suggestions of markings as in 

 the type. The smaller paratype, a juvenile, grayish, with only a few 

 dark specks. 



This apparently new species is represented in the Peruvian collec- 

 tion furnished by the Mission by the type (U.S.N.M. No. 128166), 

 80 mm. (65 mm. to base of caudal) long, taken with an otter trawl in 

 Sechura Bay and a specimen 53 mm. (42 mm. to base of caudal) long 

 dredged in Paita Bay. A juvenile, 17 mm. to base of caudal (caudal 



Figure 88. — Etropus peruvianus, new species. From the type, 80 mm. long, Sechura Bay, 

 Peru (U.S.N.M. No. 128166). 



fin broken), secured at Paita by W. L. Schmitt, and a fourth specimen, 

 75 mm. (58 mm. to base of caudal) long, taken by the Albatross at the 

 Pearl Islands, Panama Bay, in 16 fathoms, were also studied. The 

 proportions and enumerations given first in the description are based 

 on the type; the next ones are based on the 53-mm. specimen from 

 Paita Bay; those given next on the Panama Bay specimen; and the 

 fourth ones, if given, are based on the juvenile. 



This species differs from E. ectenes, the only species of the genus 

 heretofore recorded from Peru, chiefly in the characters mentioned in 

 the key. It differs from E. crossotus Jordan and Gilbert, a widely 

 distributed species on both coasts of America and common in Panama 

 Bay though not known from Peru, in the much slenderer body (depth 

 in length in 10 specimens of crossotus from Panama Bay 1.9 to 2.1) ; in 



