PISHES OF NEW YORK 421 



210 Decapterus punctatus (Agassiz) 

 Scad; Round Robin 



Scomber hippos MITCHII/L Trans. Lit. & Phil. Soc. N. Y. I, pi. V, fig. 5, 1815; 



Am. Month. Mag. II, 246, Feb. 1818, not of LINNAEUS. 

 "Caranx punctatus AGASSIZ, Spix. Pise. Bras. 108, pi. 56a, fig. 2, 1829, Brazil; 



CUVIEB & VALENCIENNES, Hist. Nat. Poiss. IX, 38, 1833; DE KAY, N. Y. 



Fauna, Fishes, 122, pi. 73, fig. 233, 1842; GUNTHEB, Cat. Fish. Brit. 



Mus. II, 426, 1860. 

 Decapterus punctatus POEY, Syn. Pise. Cub. 368, 1868; JORDAN & GLLBEBT, 



Bull. 16, U. S. Nat Mus. 432, 1883; BEAN, 19th Rep. Comm. Fish. 



N. Y. 256, 1890; Bull. Am. Mus. Nat. Hist. 362, 1897; JORDAN & 



EVEBMANN, Bull. 47, U. S. Nat. Mus. 907, 1896; SMITH, Bull. U. S. F. C. 



XVII, 97, 1898. 



Body scombriform, moderately elongate, its greatest depth one 

 -fifth to two ninths of total length without caudal, its width one 

 half the length of head; least depth of caudal peduncle one sixth 

 the length of head; head subconical, moderately compressed, its 

 Tvidth one half its length, the snout obtusely pointed, as long as 

 the eye, two sevenths as long as the head, the jaws subequal in 

 front; maxilla expanded posteriorly, reaching to below front of 

 -eye; premaxilla projectile; mandible one half as long as the 

 head, reaching to below front of eye; eye round, equal to snout, 

 two sevenths of length of head; interorbital space convex, cov- 

 ered with small scales, its width equal to eye; a low, but dis- 

 tinct nuchal keel; opercular bones partly naked; gill rakers 

 very numerous, long and slender; a small prominence on the 

 shoulder girdle in front of base of pectoral; teeth in jaws uni- 

 rserial, teeth on vomer and palatines, present or absent on 

 tongue. The spinous dorsal originates over the 13th or 14th 

 scale of the lateral line and slightly in advance of the middle of 

 the pectoral; the base of the fin is as long as the head without 

 the snout; the first spine is very slender, and as long as the 

 eye; the longest spine as long as the snout and eye combined. 

 The soft dorsal base is one third of total length including the 

 caudal: the longest ray is one half as long as the head, the last 

 ray two thirds as long as the eye; the fin is followed by a single 

 finlet consisting of two rays, the length equal to length of eye. 

 The middle caudal rays are two fifths as long as the outer, 

 which are five sixths as long as the head. The anal base is one 



