7 6 



PAPERS FROM TORTUGAS LABORATORY vol. xxxiv 



Trachurops crumenophthalma (Bloch) 



The young, 65 to 210 mm. long, were common in the refuse of the rookery on 

 Bird Key. The adults largely escaped observation, but were seen occasionally in 

 shallow water. Four taken in a gill net at Garden Key, June 29, 1929, included 

 males and females in breeding condition, the largest 270 mm. long. 



A specimen 120 mm. long showed a.well defined lateral stripe of yellow, run- 

 ning from margin of opercular to middle of base of caudal. In larger fish there 

 were indications of the same stripe. 



The stomach of one contained a large shrimp and a partly digested fish, prob- 

 ably a Harengula. W. H. L. 



This fish is characterized by the elongate, little-compressed body; the very 

 large eye, about 2.75 to 3.2 in head; the peculiar deep furrow in the shoulder 

 girdle at its juncture with the isthmus, with a fleshy projection above it; and the 

 large, oblique mouth, with projecting lower jaw. D. VIII-1,23 to 26; A. 11-1,20 

 to 23. 



Atlantic coast of the United States to Brazil; also Africa. S. F. H. 



Chloroscombrus chrysurus (Linnaeus) 



Four specimens 10 to 17 mm. in length were found swimming with the jelly- 

 fish Amelia. D. VIII-1,26 to 28; A. 11-1,26 or 27. W. H. L. 



The rather large number of fin rays, the strongly rounded ventral profile in 

 contrast with the much less strongly convex dorsal one, the deeply forked caudal, 

 and the numerous close-set gill rakers (about 28 to ^) distinguish this species. 



Atlantic coast of tropical America, straying northward to Cape Cod. 



S.F.H. 



Seriola dumerili (Risso). Amber jack 



Caranx dumerili Risso, Ichthyol. Nice, 1810, p. 175, pi. 6, fig. 20 — Nice. 



Seriola dumerili Risso, Hist. nat. poiss., vol. 3, 1827, p. 424. Meek and Hildebrand, Field 



Mus. Nat. Hist., Zool. Ser., vol. 15, pt. 2, 1925, p. 397. 

 Seriola lalandi Cuvier and Valenciennes, Hist. nat. poiss., vol. 9, 1833, p. 208 — Brazil. 

 Seriola jasciata Jordan and Thompson, Bull. U. S. Bur. Fish., vol. 24, 1904 (1905), p. 237. 



With Seriola my acquaintance is slight. It is possible that my observations refer 

 to more than one species. I note, however, that large individuals mentioned 

 below display in combination characteristics which have been said to distinguish 

 S. dumerili and S. lalandi, and follow Meek and Hildebrand (see citation above) 

 in uniting the two. 



Two specimens 785 and 880 mm. long, taken by trolling between Loggerhead 

 and Bird keys, measured respectively 610 and 690 mm. to base of caudal. Depth 

 in each 3.4, and head 3.3; D. VII-I^ 1 ^; A. II-I,2o!/ 2 ; and D. VII-I^; A. 

 II-I,2i l / 2 . Each with a broad diffuse streak of yellow from snout through eye to 

 base of caudal, and a more indistinct and incomplete one from eye toward origin 

 of dorsal. 



