LAGENORHYNCHUS. DELPHINUS 27 



Type locality. Coast of Norfolk, England. 



Geogr. Dislr. North Atlantic Ocean, Greenland. North and 

 Baltic Seas, Faroe Islands, Davis Straits. 



Genl. Char. Similar inform to Z. acutiis, forehead more swollen; 

 dorsal more attenuated and reclined: pectorals larger. Teeth, f|Z-|f ; 

 vertebrae, 88-92. 



Color. Forehead, except base, back and fins, black: sides gray- 

 ish black; beneath, white. Base of forehead, beak and mandible."^, 

 white tinged with graj'. On sides, three irregular areas, one above 

 base of pectoral, one below insertion of anterior margin of dorsal, 

 and one below the insertion of the posterior margin of dorsal, white 

 mottled with black, gray and brown. Behind the blow hole on back 

 and near the insertion of the flukes on the tail are similar light areas. 

 Flukes beneath, graj'ish. 



Measuraiu'iils. Total length, 1664; end of snout to base of dor- 

 sal, 762; height of dorsal, 152: length of pectoral, 305: breadth of 

 flukes, 381. Skull: total length, 460: length of rostrum, 229; breadth 

 at base, 152 : at middle, 87 : interorbital width, 235 ; length of tem- 

 poral fossa, 79. 



40. obliquidens. {Lagfnorliyiiiliits). Gill, Proc. .•Xcad. Nat. Scien. 

 Phil., 1865, p. 177. 



longidfiis. Cope, Proc. Acad. Nat. Scien. Phila., 1866, p. 295. 



similis, Gray, Proc. Zool. Soc, 1868, p. 147. 



Type locality. Coast of California. 



Geogr. Distr. North Pacific Ocean, Monterey to Puget Sound, 

 coast of United States. 



Genl. Char. Rather stout; dorsal falcate; skull similar to that of 

 /. aculi/s, but narrower, prema.xillae rounded, outer margins not 

 sinuate: pterygoid not meeting on median line, divergent posteriorly: 

 vomer visible in median line of palate. Teeth, f|J^f; vertebrte, 74. 



Color. Above, black, or greenish black; broad strips of white, 

 gray and black on the sides; beneath, white. Posterior edge of dor- 

 sal and flukes tipped with grayish white. 



Measurements. Total length, 2210; breadth of flukes, 610: end of 

 snout to anterior base of dorsal, 914. Skull: total length, 413; length 

 of rostrum, 209; breadth at base, 118: at middle, 81; interorbital 

 breadth, 192: length of temporal fossa, 84; depth of same, 68. 



22. Delpliiiiu8. 



i2=i? to ^^= 160 to 240. 

 40—40 60—60 ' 



Delphinus, Linn. Syst. Nat., 1758, p. 77. Type D. dclphis, Linn. 

 EuJelphinus, Gerv. Ost^og. des C^taces. 1880, p. 600. 



