Jordan and Evcrmann. — Fishes of North America. 1389 



fin, from tip to tip, about equal to greatest depth of body. Pectorals 

 short, slightly longer than veutrals, as long as from snout to edge of pre- 

 opercle. Veutrals placed well behind pectorals, not reaching vent. Color- 

 ation in spirits, nearly uniform light grayish, without distinct markings; 

 golden yellow in life, according to Lieutenant Nichols; very faint darker 

 streaks present along the rows of scales; preorbital, suborbital, and pre- 

 opcrcle bright silvery ; low<!r jaw silverj^; both jaws dusky at tip; fins all 

 pale; very obscure darker blotch in front of base of pectoral. Numerous 

 specimens collected by Robert C. McGregor at Clarion and Socorro islands 

 show surprising variations in color. Some are wholly dark steel bhie, the 

 pale streaks faint, some are bright lemon yellow as the original type, 

 while others have yellow blotches variously placed, sometimes tln^ head 

 only bright yellow. 



The species resembles K. elcgans, but is very distinct, the depth less 2i 

 to 2V (2 in elegans), the scales smaller, almost as small as in K. analogus, 

 the streaks narrow and obscure. The anal is higher and shorter than in 

 elet/ans, its longest ray li in base of soft part, 2^ in head. Pectoral longer, 

 1^ in head ( I'f in elegans). Teeth broader and more compressed than in any 

 other of our species, the maxillary longer, reaching to opposite pnidl, 31 

 in head m in elegans and analogus), the premaxillary processes extend- 

 ing farther back. Longest ray of anal is 3 in base^ of soft part of fin in 

 analogus, 2 in elegans, 14 in luteacenx. Length 16 inches, llevillagigedo 

 Archipelago; known only from Socorro and Clarion islands, (lutescens 

 growing yellow.) 



Pimelepteriis lutescens, JORDAN & Gilbert, Proc. IT. S. Nat. Mus. 1881, 229, Braithwaite 



Bay, Socorro Island (Coll. Lieut. Nichols) ; J okdan. Bull. U. S. Fish Comm. 1881, 328. 



Kyphosus lutescens, Jordan, Proc. U. S. Nat. Mus. 1885, 380; Jordan & Fesler, I. c.,53G. 



567. SECTATOR, Jordan & Fesler. 



Sectatoi; Jordan & Fesler, Eevie^^' Sparoid Fishes, 534, 1893 (ocyurus). 



This genus is very close to Kypliosns, from which it differs in its smaller 

 incisor teeth, which have very inconspicuous roots, and by the deeply 

 forked caudal, (scctator, one that follows, a name early applied to the 

 rudder-fish from its custom of following ships.) 



1768. SECTATOR OCTUKUS (Jordan & Gilbert). 



Head 3^; depth 2^. D. XI, 13; A. Ill, 14; scales 12-78-20 (rows). Body 

 oblong-elliptical, much less compressed and elevated th;in in related spe- 

 cies ; both dorsal and ventral outlines regularly and nearly e([ually curved ; 

 frontal region little gibbous, the depression below it little marked and 

 the snout scarcely blunt; mouth small, terminal, the lower jaw slightly 

 included; maxillary not reaching front of eye; incisor teeth very small, 

 about 30 in the upper jaw lanceolate, each with a very small horizontal 

 process, shorter than the tooth; behind them a band of scarcely evident 

 asperities; patches of similar asperities on vomer and palatines; eye very 

 large, nearly as long as snout, its diameter nearly I interorbital width and 

 i length of head ; preopercle produced and rounded at angle, its margin 



