Jordan ctnd Evermann, Fishes of North America. i)17 



rf. Opercular spot obsolete; body rather elongate, the depth 3 to 3% in length; 

 snout 3 in head; head 3% in body; siroml D. I, 26; A. I, 22; shields 25 

 to 29. 

 e. Body slender, the depth about 3% in length; color dark, chiefly bluish. 



RUIiEB, 1311. 



ee. Body deeper, the depth about 2g in length; color pale, mostly golden. 



BARTHOLOMEW, 1312. 



bb. Soft dorsal and anal much elevated in front and more or less falcate; upper teeth in a 

 band, the outer enlarged; lower teeth in one series; dorsal sheath of scales not 

 greatly developed; soft dorsal and anal both rather short. 

 TRICROPTERUS (rpel?, three; anpov, point; irrepov, fin; from the 3 free spines supposed to 



stand between the dorsals): 

 /. Breast naked, except a small rhombic area before ventrals; two small canines in 



front of lower jaw; body robust, compressed. 



g. Opercular spot large; adult with a black spot on pectoral; pectoral 3 in length. 

 Head 3%; depth about 3; second D. I, 20; A. I, 16; scutes (developed) 

 about 25. HIPPOS, 1313. 



ff. Breast entirely covered with small scales. 

 PARATRACTUS (napd, near; arpa/cro?, spindle): 



/(. Body subfusiform, the depth less than % the length; breast scaly; teeth of outer 

 series small, not canine-like; a black opercular spot; no spot on pectoral; 

 arch of lateral line about half straight part. CRYBOS, 1314. 



i. Pectoral fin moderate, rarely longer than head; scutes about 50. 

 it. Pectoral fin very long, much longer than head; scutes about 40. 



CABALLUS, 1315. 



CARANGICHTHYS, (Caranx; ixflus, fish): 

 kh. Body oblong ovate, the depth more than % the length; outer teeth rather 



strong, lower teeth not canine-like. 

 j. General color silvery; vertical fins not all black. 



k. Body moderately elevated, the depth in adult 2 to 2% in length. 

 Opercular spot very small or obsolete; no pectoral spot; pectoral 

 3 in length. 



I. Body rather elongate, the depth in adult 2% in length; dorsal 



and caudal fins largely black; eye larger than in C. lotus, the 

 head less obtuse. Head 3%; second D. I, 19; A. I, 15; scutes 



30. MARGINATUS, 1316. 



II. Body moderately deep, the head bluntish, the eye small; the 



depth about 2% in length; dorsal fin scarcely dusky, caudal 

 fin pale. HeadSf ; second D. I, 20; A. I, 17; scutes 30. 



LATUS, 1317. 



kk. Body much elevated, the depth in adult 2| in length; no dark cross 

 bands nor opercular spot; a small, dark spot in axil; caudal and 

 dorsal lobes dusky; curve of lateral line 1% in straight part; 

 caudal lobes as long as head; pectoral & longer. Head 3f ; depth 

 2; second D. I, 22; A. II, I, 19; scutes 32. MEPUSICOLA, 1318. 

 jj. General color brassy or blackish; vertical fins black; lower teeth not 



canine-like. 



m. Anterior profile gibbous; head very large; curve of lateral line less 

 than % straight part; second dorsal and anal strongly falcate; 

 anterior lobe of dorsal about % head; pectoral very long, 2% in 

 length; colornearly uniform black. Head3%; depth 2jj; second 

 D. I, 21; A. IT, I, 18; scutes 28. LUGUBRIS, 1319. 



mm. Anterior profile scarcely gibbous; curve of lateral line a little more 

 than % straight part; soft dorsal and anal strongly falcate; ante- 

 rior rays of dorsal % head; pectoral a little more than % body; 

 color dark olivaceous or brassy ; sides with many small dark- 

 brown spots. Head 3%; depth 2%; second D. I, 22; A. I, 19; 

 scutes about 35. MELAMPYQUS, 1320. 



