432 DE. GtJNTHEE ON THE FISHES OF CENTEAL AMEEICA. 



76. Caranx caninus. 

 D. 8|^. A. 2|1. L. lat. 24. 



The teeth in the upper jaw form a villiform band, those of the outer series being 

 much the stronger, and widely set. Lower jaw with a single series of rather strong, 

 closely set teeth, and with the two anterior ones somewhat enlarged, canine-like ; teeth 

 on the vomer, the palatines, and the tongue. The height of the body is a little more 

 than the length of the head, and one-third of the total (without caudal). Snout 

 obtuse, as long as the diameter of the eye ; eye with an adipose eyelid in front and 

 behind. Prseorbital much narrower than the orbit. The maxillary extends beyond 

 the vertical from the centre of the eye. Breast naked ; lateral line slightly bent, the 

 width of the arch being contained once and one-third in the length of the straight 

 portion ; the latter commences in the vertical from tlie fifth dorsal ray ; the plates do 

 not reach forward to the end of the arched portion, and are well developed. Lower 

 jaw scarcely projecting beyond the upper. Dorsal spines rather stout and short ; the 

 fourth is the longest, and one-tliird of the length of the head. Tlie pectoral extends to 

 the fifth anal ray. A black opercular spot. Membrane of the soft dorsal and anal 

 blackish. 



One specimen, 7^ inches long, was discovered by Capt. Dow at Panama. 



77. C'aranx dorsalis. 



Carangoides dorsalis, Gill, Proc. Acad. Nat. Sc. Philad. 1863, p. 166. 



D. 4-5 1 4 A. 2 14 L. lat. 25*. 



The teeth in both jaws form villiform bands ; teeth on the vomer, the palatine bones, 

 and on the tongue. The height of the body is contained once and four-fifths in the 

 total length (without caudal), the length of the head thrice and one-fourth. The first 

 dorsal fin is but little developed, the spines being short, feeble, and flexible. Anterior 

 rays of the dorsal and anal fins prolonged into a very long filament, sometimes longer 

 than the whole body. Jaws equal in length, the maxillary extends to the vertical from 

 the front margin of the orbit, l^ateral line bent, the width of its arch being as long as 

 the straight portion ; the latter commences below the middle of the second dorsal fin. 

 The plates are moderately developed, and commence at some distance from the bend of 

 the lateral line. Gill-membrane above the pectoral blackish ; posterior half of the 

 ventrals black. 



Panama. We have received two examples from Capt. Dow, one 19 inches long. 



* Mr. Gill counted 44 ; this is either a mistake, or he has counted small scales not deserving the name of 

 plate-s. 



