FISHES OF NEW YORK 451 



thoracic, I, 5, partly received into a groove in the abdomen; 

 caudal fin widely forked; lateral line present; gill membranes 

 free from the isthmus; branchiostegals seven; no pseudo- 

 branchiae; no air bladder; pyloric appendages very numerous; 

 vertebrae about 30. A genus with probably only two species. 

 Very large fishes, inhabiting the high seas in warm regions, 

 noted for their brilliant and changeable colors. (After Jordan 

 and Evermann) 



225 Coryphaena hippurus Linnaeus 

 Common DolpJiin 



CorypJiaena hippurus Linnaeus, Syst. Nat. ed. X, I, 261, 1758, open seas; 

 GuNTHEE, Cat. Fish. Brit. Mus. II, 405, 1S60; Cuvier & Valenciennes, 

 Hist. Nat. Poiss, IX, 278, pi. 266, 1833; Jordan & Gilbert, Bull. 16, 

 TJ. S. Nat. Mus. 914, 1883; Jordan & Evermann, Bull. 47, U. S. Nat. 

 Mus. 952, 1806, pi. CXI.IX, fig. 402. 1900: Bean, Bull. Am. Mus. Nat. 

 Hist. 363, 1897; Smith, Bull. TJ. S. F. C. XVII, 99, 1898. 



Conjphaena Idppnris Mitchill, Trans. Lit. & Phil. Soc. N. Y. I, 378, 1815. 



Corypliaena sueurii Cuvier & Valenciennes, Hist. Nat. Poiss. IX, 302. 1833. 



Conjphaena gloUceps De Kay, N. Y. Fauna, Fishes, 132, pi. 10, fig. 29, 1842, 

 off New York. 



Coryphaena sveuri Jordan & Gilbert, Bull. 16, U. S. Nat. Mus. 455. 1883. 



Body elongate, compressed, highest anteriorly, the greatest 



depth equal to length of head and to one fourth of total length 



without caudal; the greatest width about equal to postorbital 



length of head; least hight of caudal peduncle one fourth the 



length of head; maxilla reaching nearly to below end of eye; 



upper jaw equal to snout and eye combined; mandible reaching 



past hind margin of orbit. The profile of the snout becomes 



nearly vertical with age; the male has the forehead elevated, 



forming a crest which projects slightly beyond the upper jaw. 



Eye small, one half the length of snout, one sixth the length of 



head. The dorsal origin is nearly above the eye; the fin occupies 



the entire back, the longest spines (12th to 14th) equal postorbital 



•ength of head, the last spine two ninths as long as head. 



Caudal very deeply forked, the middle rays less than one sixth 



as long as the external rays, which are one third as long as the 



dorsal base. The anal begins under the 32d spine of the dorsal; 



its base is as long as the head and pectoral combined, its longest 



ray one third as long as the head, its last ray equal to eye, the 



