THE SHORE FISHES OF PERU 293 



snout long, pointed, 3.7 in iiead; eye quite small, 13; interorbital 3.5; 

 mouth large, gently oblique, terminal ; gape anteriorly little above level 

 of lower margin of eye; maxillary reaching a little beyond posterior 

 margin of eye, 2.55 in head; teeth in upper jaw in a narrow band, with 

 the outer series notably enlarged, the largest ones about two-thirds 

 length of pupil, those in lower jaw principally in 2 series, those of inner 

 series enlarged, but smaller than the enlarged teeth of upper jaw; gill 

 rakers short, those at angle about half length of eye, 8 more or less 

 developed on lower limb of first arch, upper limb with a few coarse 

 tubercles only ; margin of preopercle with 2 rather broad indentations 

 in vertical limb, with a ciliated membrane below upper concavity, 

 with small spines covered by membrane at lower angle; lateral line 

 slightly arched anteriorly, becoming horizontal over middle of anal; 

 scales with flexible ctenoid edges, extending forward on snout and on 

 posterior half of mandible, forming a narrow sheath on base of second 

 dorsal, but not extending on this fin, or on anal, and only slightly on 

 bases of ventral and pectoral, extending on interradial membranes of 

 caudal nearly to its margin, 7 oblique rows between lateral line and 

 first dorsal spine, and 8 between it and first ray of second dorsal; 

 dorsal fins close together, the spines rather strong, short, the fourth 

 largest, not reaching tip of any of the succeeding ones if deflexed, 

 4.1 in head; second dorsal long and low, with an evenly convex mar- 

 gin highest anteriorly, the longest rays exceeding length of the longest 

 spine; caudal fin deeply lunate, both lobes acute and of about equal 

 length; anal with concave margin, the second spine bound closely to 

 the first soft ray, its tip not free, little more than a third the length of 

 first soft ray, 7.5 in head, ventral inserted fully an eye's diameter be- 

 hind base of pectoral, long and pointed, not quite extending halfway 

 to vent, 2.15 in head; pectoral short and broad, not nearly reaching 

 tip of ventral, sixth ray (counting downward) longest, 2.2 in head, 

 7.1 in length. 



Color grayish, with bluish reflections, above; silvery below; rows 

 of scales on side with more or less broken, brown stripes, the brown 

 color ending rather abruptly on about lower fourth of side at vertical 

 from second anal spine, but extending down to base of fin behind this 

 line ; inside lining of gill covers dusky ; membranous margin of opercle 

 dusky; fins all more or less dusky brown, the ventrals paler than the 

 other fins, pectorals quite dark on inner side. 



This species is represented by a single specimen, 1,000 mm. (837 mm. 

 to base of caudal) long, taken by the Mission off Guanape Island on a 

 line trawl, set in about 10 fathoms of water. It was known previously 

 only from the original description. To identify this specimen with 

 S. wieneri considerable allowance must be made for differences in 

 the method and place of enumerating the scales, for individual varia- 

 tion, and perhaps for error in counting, as the original description 



624264—45 20 



