308 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



and pointed, scarely compressed, about 40 on each side of each jaw. No 

 teeth ou vomer. Teeth not green. 



Maxillary not entirely concealed beneath preorbital. Interorbital area 

 with a deep scaly groove, which is broadest anteriorly ; a strong ridge 

 along temporal region separated by a furrow from a rectangular elevated 

 area on the top of the cranium. Cheeks closelj' scaled ; opercles naked 

 below ; scaled above. No gill-rakers. Scales not green, not very small. 



Dorsal fin low, its anterior rays highest, as long as from eye to edge 

 of opercle. Anal a little higher than dorsal, beginning farther forward. 

 Caudal fin almost truncate, the lower rays little longer than the upper, 

 the middle rays five-sevenths the length of the postorbital part of the 

 head, their insertion somewhat nearer base of caudal than eye. Pecto- 

 rals moderate, five-sixths length of postorbital part of head, the upper 

 ray not enlarged. Ventrals small, half length of postorbital part of 

 head, their insertion somewhat nearer base of caudal than eye. 



Head 2| in length; depth 19. D. 14; A. 16; P. 10; V. 6; Lat. 1. 

 215. 



Color, in spirits, olivaceous above, whitish but not silvery below; a 

 faint band of silvery along the sides, which becomes blackish i>osteriorly ; 

 this band as well as the sides of the head and the lower parts of the 

 body rendered dusky by thick-set dark-brown points. A large distinct 

 rounded black spot above base of pectorals. A faint dusky band along 

 the back. Fins plain ; tips of ventrals a little dusky ; pectorals entirely 

 pale. Caudal darker at tip. 



Several specimens, the longest tibout 15 inches in length, were taken 

 in the Bay of Panama. 



3. Caranx atrimanus, sp. uov. (29341.) 



Subgenus Carangops Gill; allied to Caranx aviblyrhijnclms C. & V. = Caranx falcatus 

 Holbr. 



Body regularly elliptical, compressed and much elevated, the dorsal 

 and ventral curves about equal, and the greatest depth of the body 

 nearly in the middle of the length, exclusive of the caudal peduncle. 

 Head small, short and low, its depth rather less than its lengtb, the 

 upper profile descending gently to the sharp snout; jaws about equal; 

 premaxillaries anteriorly about in the axis of the body; maxillaries 

 narrow, reaching slightly beyond anterior margin of orbit, 3f in head. 

 Each jaw with a single regular series of very small, close-set teeth, 

 ■without larger teeth; no teeth on vomer, palatines, or tongue. Eye 

 moderate, slightly longer than snout, 1^ in interorbital width; occiput 

 with an evident carina. Gill-rakers moderate, about 15 on the anterior 

 limb, the longest half the diameter of the orbit. Head naked, with the 

 exception of a patch of scales on the temporal region. 



Distance from snout to origin of spinous dorsal less than length of 

 pectorals. Dorsal spines slender and fragile, the highest equal to the 

 distance from snout to front of pupil. A well-developed antrorse spine 

 before the dorsal. Soft dorsal and anal similar, not falcate, the rays 



