Jordan and Evermann. Fishes of North America. 2847 



' Page 938. To the synonymy of Chloroscombrus chrysurus add: 



Seriola cosmopolita, CUVIER, Regne Animal, Ed. 2, vol. n, 1829, Gorea ; after Scomber 

 chloris, BLOCH. 



Add the following species: 



1334(a). CHLOROSCOMBRTJS ECTE1VURUS, Jordan & Osgood. 



Head 31; depth 2f. D. VIII-I, 27; A. II-I, 26. Snout slightly shorter 

 than eye, which is 3| in head. Chord of curved part of lateral line If in 

 straight part. Depth of caudal peduncle 2 in its length, measuring from 

 the base of the last dorsal ray to the base of the first caudal ray. Pecto- 

 rals long and falcate, 3 in length ; ventrals short, 2 in head, extending 

 beyond the vent, which is situated in a groove in which these fins fit. 

 Depth of head equal to or slightly less than its length ; maxillary reaching 

 anterior edge of eye, 2f in head. Lateral line unarmed; curve of ventral 

 outline very slightly more pronounced than that of the dorsal; dorsal 

 and anal fin sheaths well developed. Tips of upper spines and rays dusky ; 

 a black blotch at base of upper rays of caudal, and a black axillary and oper- 

 cular spot. The species is closely related to Chloroscombrus chrysurus, the 

 common species of the South Atlantic and Gulf States, which it evidently 

 represents in the West Indies. The species chrysurus is deeper in every 

 way, having a deeper body, a deeper head, and a deeper caudal peduncle. 

 In chrysurus also the eye is larger, the mouth more nearly vertical, and 

 the arch of the lateral line higher. When specimens of equal size from 

 Florida and Havana are compared the characters are very evident. In 

 2 specimens, each 7| inches in length, from Havana and Florida, respec- 

 tively, the depth of the body of the one is contained 1 times in that of 

 the other, the depth of the head 1^, the depth of the caudal peduncle lg, 

 and the length of the eye 1J-. The names chrysurus (South Carolina), lalus 

 (Carolina), and caribceus (Texas) evidently all belong to the species of the 

 United States coast. The type of chloris came from Acara", in Guinea, and 

 cosmopolita of Cuvier was originally as a mere substitute for chloris. Until 

 the African species can be examined, it is better not to use the name for 

 either of the American forms. Probably Chloroscombrus cliloris, when 

 studied, will be found distinct from either. If not, that name would take 

 the place of ectenurus. West Indies; known from Jamaica and Cuba. 

 rts, extended; ovpa, tail.) 



Chloroscombrus ectenurus, JORDAN & OSGOOD, Proc. Ac. Nat. Sci. Phila. 1897, 101, Jamaica. 

 (Coll. J.S.Roberts.) 



The validity of Chloroscombrus ectenurus is still doubtful, 

 Page 942. After Trachinotus falcatus add: 



1337(a). TRACHINOTUS RHOMBOIDES (Blocli). 



Head 3; depth 1 in length; eye 3 in head. D. VI-I, 20; A. II-I 18. 

 Back much elevated, but not angulated at origin of soft dorsal; end of 

 snout not vertical, curved; head slightly concave at occiput. Maxillary 

 to below anterior margin of pupil ; eye on level of lower edge of premax- 

 illary and axil of pectoral. Origin of soft dorsal behind tip of pectoral, 



