PRODELPHINUS. :U 



Broad black band from ej-e to base of pectoral with white area in its 

 center that joins the white throat below the eye. Fins black, mar- 

 gined anteriorly with white. 



.\ft-asitrt-mc-nts. Total length. 2097; end of beak to base of dor- 

 sal. 932; breadth of flukes. 420; anterior margin of pectoral fin, 305. 



46. crotaphiscus. (/)c-//>/iifi//s). Cope, Proc. Nat. Scien. Phil., 1865. p. 



203. 



Ty/>r localily. Unknown Type, skull in the museum at Salem. 

 Mass. 



Geoi^r. Dish-. Unknown. 



Gen/. Char. Muzzle flat, carina in front of blow holes; small 

 temporal fossa, only a trace of the groove in roof of mouth. Paroc- 

 cipital ala- moderately developed; inner margin of glenoid cavity pro- 

 duced into a lamina; palatines terminating next the orbits, sphinoids 

 in a free keel and with a strong lateral keel. 



47. plagiodon. ^Dc/phinus). Cope, Proc. Acad. Nat. Scien. Phil., 1866, 



p. 296. 



Ty/ie locality. Eastern coast of United States. 



Gedgr. Distr. Atlantic coast of the United States, Cape Hat- 

 teras to Gulf of Mexico. 



Genl. Char. Dorsal fin high, recurved; pectoral tins broad at 

 base: beak stout. 



FiG. 9. PrODELPMINUS PLAGIODON. 

 . Dclphinidae, from photo, of specimcQ taken on I'. S. steaii 



Color, .\bove purplish gray, shading on the sides into the white 

 of the underparts. Upper parts and fins spotted with white or gray; 

 lower parts spotted with dark gray. 



Measurements. Total length, 2157: length of mouth, 2S0; of pec- 

 toral fin, 304; end of beak to dorsal, 337: height of dorsal, 241; 

 breadth of flukes, 527. 



