Report of a Mission to Guam . 93 



No scales on the head, the scales on the thorax larger than on 

 the sides. Upper lip broad, lower lip double. The pharyngeal 

 teeth J_.shaped, not pavement-like. Teeth in jaws in single series, 

 the anterior ones (in young) not especially long, a canine tooth 

 at angle of jaws. Bod}- oblong, compressed. Branchiostegals 6. 

 Fins: Caudal is rounded. Pedlorals 1.50 into head, base 4.50, 

 shortest ray equal to base. Base of anal 1.86 into base of dorsal. 

 Ventrals 2.33 into head. Color in spirits: Above brownish with 

 purplish wash, each scale with three or four small dots of bluish 

 green, dots thicker and more minute on top of head and upper half 

 of opercle. Sides of body below axis, belly, thorax and chin yel- 

 lowish white with slight bluish wash; the centre of the scales a 

 shade darker, which gives an indistinct streaked appearance. 

 A yellowish white line, broadest anteriorly, extends from lips across 

 cheeks, just touching lower margin of orbit, and back to caudal, 

 becoming indistinct posteriorly. Just above this line, extending 

 from head to caudal fin, is a narrow dusky line. Two small black 

 dots on each side of caudal peduncle; these dots are margined with 

 blue. Base and axes of pecftorals blackish. A curved white line, 

 wide as the pupil, extends from edge of opercle above and around 

 the inside axis of the pecftorals. Fins: All whitish, an indistinct 

 indication of bluish dots on dorsal; no black spot on last dorsal ray. 

 Four specimens. L,ength about 3.50 inches. Agaiia, Guam, June 

 14, 1900. This species is near S. strigiventcr (Benn.). Hab. 

 Marianas. Type specimen 150 B. P. B. M. 



Genus GOMPHOSUS I.acepede. 



151-154. Gottiphosus pectoralis Quoy & Gaim. 



Head 2.66; depth 4; eye 7.5; interorbital 6.50; D. viii 13; 

 A. II II. Scales 2-29-1 1 Snout much produced. Body oblong, 

 compressed. Teeth conical, no posterior canines. Fins: Caudal 

 truncate, the outer rays not produced. Pe(5toral 2 into head, its 

 base equal to length of its .shortest ra}-. Base of anal i .86 into base 

 of dorsal. Color in spirits: Reddish brown on top of head and body, 

 becoming lighter on belly and whitish on thorax and lower half of 

 head. The scales of body darker at their bases. A dark band 

 from snout through eye — in some specimens two bands may be dis- 

 tinguished behind the eye. A black spot at upper axis of pectorals.. 

 Caudal yellow for its posterior half. Dorsal and anal dusky, with 

 a narrow margin of yellow, the anal with a row of transparent spots 

 on its inner half. Pecftorals and ventrals yellow. Five specimens. 

 Length 3-5.50 inches. Guam, June 19, 1900. Hab. Mauritius to 

 Malay Archipelago, Marianas. 



155-156. Gomphosus tricolor Quoy & Gaim. Loro. 



Head 2.50; depth 4.20; eye 10.5; interorbitals 7; distance from 

 anterior of orbit to tip of snout i .86 into head; D. viii 13; A. 11 11. 



