FISHES OF NEW YORK 437 



ilia n the curve of the back; occiput and thoracic region trench- 

 ant; caudal peduncle very narrow, the fin widely forked; scales 

 small, smooth; lateral line arched in front, unarmed, or with 

 a few small plates; head nearly naked; preorbital low; mouth 

 rather small, oblique, lower jaw scarcely projecting, upper jaw 

 protractile; maxillary broad, emarginate behind, with a large 

 supplemental bone; jaws, vomer and palatines with feeble teeth, 

 mostly in single series; first dorsal of feeble spines, connected 

 by membrane; second dorsal and anal long and low, similar, 

 much longer than the short abdomen; no finlets. 



219 Chloroscombrus chrysurus (Linnaeus) 



Casahej Bumper 



Scomber chriisvriis Linnaeus, Syst. Nat. ed. XII, I, 494, 1766, Charleston. 

 Seriola cosuiopolita Cxjvier & Valenciennes, Hist. Nat. Poiss. IX, 219, 



pi. 259, 1833; De Kay, N. Y. Fauna, Fishes, 129, pi. 74, fig. 237, 1842. 

 Chloroscombrus cariMaeus Gieard, Mex. Bound. Surv, Zool. 21, pi. 9, fig. 



6. 1859, Joseph Island, Texas. 

 Micropterijx clirysurus Gunther, Cat. Fish. Brit. Mus. II, 460, 1860. 

 Chloroscombrus chrysurus Gill, Proc. Ac. Nat. Scl. Phila. 437, 1862; Jordan 



& Gilbert, Bull. 16, U. S. Nat. Mus. 441, 1883; Jordan & Evermann, 



Bull. 47, U. S. Nat. Mus. 938, 1896, pi. CXI.V, fig. 394, 1900. 



The depth of the body is contained two and one third times 

 in the length; length of head contained three and three fourths 

 times in the length of the body; head rather deep than long; 

 opercles very short; snout short; mouth very oblique; maxillary 

 reaching anterior margin of eye; eye very large, longer than 

 snout, about three in head; chord of curved part of lateral line 

 scarcely longer than head, one and two thirds to one and three 

 fourths times in length of straight part; lateral line wholly un- 

 armed; caudal peduncle longer than deep, its diameter less than 

 that of the eye; ventrals very small, fitting into a groove in 

 which the vent is situated; pectorals long, falcate, one third the 

 length. D. VIII-I, 2G; A. II-I, 26. 



Color of upper parts pale greenish; sides of head and body 

 silvery iridescent; a nearly square black blotch on caudal pedun- 

 cle above; dark spots on opercle and axil of pectoral; inside of 

 mouth black; first dorsal translucent with a yellow tinge ante- 

 riorh" and with minute dusky points, second dorsal translucent 



