132 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



HaUtat. — Vauicolo, Teruate, Saiigir, Halmaheira, Arcliip. Molucca, 

 Johnstou's Island. 



Head Sf {^); depth 4J (5i); D. YIII-I, 8; A. II, G; scales, 21-3G-G. 



Body rather slender ; ventral outline almost as much curved as dor- 

 sal; profile gently, and nearly evenly, curved from snout to first dorsal 

 fin. Caudal peduncle tapers evenly from dorsal and anal to the caiudal 

 fin, and nearly equals length of head ; its least depth 2^ in its length. 



Snout short, bluntish, 2| in head ; mouth small, maxillary reaching 

 posterior nostril, 2| in head. The bands of villiform teeth very narrow; 

 in front two series in each jaw, on the sides only one. Eye large, 1| in 

 snout, 3J in head ; interorbital space moderately convex, 3 in head. 

 Upright limb of preopercle straight ; opercular spine small. 



Gill-rakers slender, 2h in maxillary, 7 in head, about 25 on lower limb 

 of arch. 



I>arbels 1§ in head, extending beyond posterior margin of eye. 



Scales, moderate, ctenoid; preorbital smooth. 



Dorsal fins moderate ; spines of first dorsal rather weak, depressible 

 into a groove; first spine very minute, second and third longest, 1^ in 

 head, those following evenly decreasing in height to the eighth spine, 

 which is 3 in head. The first ray of the second dorsal fin is unbranched, 

 and, showing no articulations, has the appearance of a true spine, 

 slightly shorter than the last soft ray, and 4 in head; the second artic- 

 ulate ray is contained 1| times in the highest dorsal spine. Caudal well 

 forked, its longest rays 1^ in head. Anal with two spines, the first of 

 which is very minute ; otherwise, similar to soft dorsal, though a very 

 little higher. Pectorals If in head. Yentrals 1;^ in head. Air-bladder 

 moderate. Peritoneum, black. 



Color, in spirits, grayish-green above lateral line, lighter below, with 

 yellow metallic luster ; minute black punctulations on scales above lat 

 eral line ; none below. 



One specimen (30,873), 6^ inches long. 



1,3.— UPEXEUS PEEOEBITALIS sp. nor. 



Head 3f (4^) ; depth 4^ (5^). D. YIII-9 ; A. I, 7 ; scales 2-37-5. 



Body more slender than in U.. vanicoJensis C. & Y. ; ventral out- 

 line almost straight, dorsal outline well curved ; profile from snout to 

 dorsal regularly curved ; caudal peduncle 1^ in head, its least height 

 S\ in head. 



Mouth nearly horizontal, maxillary 3 in head, terminating behind 

 anterior nostril ; lower jaw produced. The band of villiform teeth mod- 

 erate in both jaws, in a patch in front, narrowing posteriorly. Eye 

 moderate, 2^ in snout, 4^ in head; interorbital space slightly concave, 

 4^ in head ; preorbital very deep, 2| in head. 



Gill-rakers short and rather slender, 4^ in maxillary; 19 on lower limb 

 of arch. 



