THE SHORE FISHES OF PERU 



305 



what pointed; second anal spine rather strong, though shorter than 

 adjacent soft ray, 1.9, 1.8 in head; ventral inserted at vertical from 

 base of upper ray of pectoral, 1.3 in head (broken in type); pectoral 

 long, reaching far beyond tip of ventral, 1.1, 1.15 in head, 3.8, 3.8 in 

 length. 



Color grayish brown above, with bluish reflections; this color 

 shading into the silvery gray of the lower parts; fins more or less 

 olivaceous, with dusky punctulations; first dorsal quite dark distally. 



The description is based on two specimens, 130 and 77 mm. (100 

 and 59 mm. to base of caudal) long, furnished by the Mission. The 

 proportions and enumerations based on the larger one, which has 

 been designated as the type (U.S.N. M. No. 128036), are given first 

 in each instance. This specimen was taken with an otter trawl in 

 the Gulf of Guayaquil off Puerto Pizarro. The smaller one, and two 

 juveniles, each about 25 mm. long, which apparently are of this 

 species, were dredged in Sechura Bay. This species is related to 

 S. oscitans, with which it agrees in the armature of the preopercle but 

 differs as shown in the parallel comparison offered : 



S. oscitans 



Skull rather firm. 



Ej^e round. 



Mouth slightly inferior, moderately 



oblique, the gape anteriorly scarcely 



above level of lower margin of eye. 

 Maxillary reaching to or a little bej^ond 



posterior margin of eye, 1.8 to 1.85 



in head. 

 Dorsal rays X or XI-I, 25 or 26. 

 Anal rays II, 8. 

 Pectoral rays 20. 

 Gill rakers 19 or 20 + 26 or 27. 

 Rows of scales above lateral line run- 

 ning obliquely upward; 6 or 7 rows 



between lateral line and first dorsal 



spine. 



Range. — Northern Peru; Gulf of Guayaquil and Sechura Bay. 



STELLIFER EBICYMBA PERUANA, new Bubspecies 



Figure 66 



Head 3.1 to 3.5; depth 3.1 to 3.5; D. XI or XII-I, 22 to 25; A. II. 



9; P. 17 or 18; scales 47 to 50; vertebrae 24 (one specimen dissected). 

 Body fairly elongate, moderately compressed, its greatest thickness 

 somewhat more than half its depth; back moderately elevated; 

 outline over orbital region straight, gently convex at nape; head rather 

 broad, the bones of skull very cavernous; caudal peduncle rather 

 short, 3.2 to 3.9 in head; snout short, broad, not projecting beyond 



S. 'pizarroensis 



Skull quite cavernous. 



Eye obliquely elongate. 



Mouth terminal, strongly oblique, the 

 gape anteriorly little below middle 

 of eye. 



Maxillary reaching little beyond pos- 

 terior margin of pupil; 2.0 to 2.1 in 

 head. 



Dorsal rays XI or XII-I, 20 or 21. 



Anal rays II, 10. 



Pectoral rays 17 or 18. 



Gill rakers 19 + 31 to 34. 



Rows of scales above lateral line nearly 

 parallel with it; 5 rows between 

 lateral line and first dorsal spine. 



