400 BULLETIN 18 9, UNITED STATES NATIONAL MUSEUM 

 LABRISOMUS AFUERAE, new species 



Figure 77 



Head 3.0 to 3.5; depth 3.6 to 3.8; D. XIX, 11; A. II, 18 to 20; 

 P. 14 to 15; scales in lateral line (pores) 57 to 59, just above lateral 

 line 58 to 63; vertebrae 34 (one specimen dissected). 



Body moderately elongate, compressed, its greatest thickness some- 

 what less than two- thirds its depth; dorsal outline ascending rather 

 rapidly in front of eyes, shghtly convex from interorbital to dorsal fin; 

 head compressed, a little broader than anterior part of trunk; caudal 

 peduncle short, compressed, 3.1 to 3.4 in head; snout fairly blunt, 3.1 

 to 3.6; eye 3.1 to 3.6; interorbital 11 to 14.5; mouth moderate, ter- 

 minal, slightly oblique; lips fairly thick; maxillary reaching nearly or 

 quite to anterior margin of pupil, 3.0 to 3.5 in head; teeth in each jaw 



Figure 77. — Labrisomus afuerae, new species. From the type, 53 mm. long, Lobos de 

 Afuera Island, Peru (U.S.N.M. No. 128213). 



in a single series (not followed by a band of minute teeth) ; a few blunt 

 teeth on vomer, and none on palatines; anterior nostril with a few 

 tentacles, about as long as pupil; upper posterior part of eye with 

 about 4 or 5 tentacles, fully half length of eye; nuchal "comb" con- 

 sisting of about 12 tentacles on each side, the longest one nearly as 

 long as eye; gill rakers slender, almost as long as pupU, about 8 on 

 lower limb, and 4 on upper one, of first arch; lateral line curved 

 anteriorly, reaching middle of side and becoming straight over ante- 

 rior part of anal, and slightly behind tip of pectoral, chord of curved 

 part longer than straight part; scales moderately large, not especially 

 reduced anteriorly above lateral line, 6 rows between lateral line and 

 sixth dorsal spine, those in anterior part of lateral line enlarged, with 

 free margins concave; dorsal begimiing a little behind margin of 

 preopercle, the spines sharp, the spinous part indented anteriorly and 

 posteriorly, the third spine being notably shorter than the fourth, and 

 the third and fourth from the last one also being considerably short- 

 ened, the longest ones near middle of spinous part of fin, 2.3 to 3.2 

 in head, the soft part much higher than spinous part; caudal with 



