22 ORCINUS. PSEUDORCA, 



Orca. Gray Zool. Erebus and Terror, 1846, p. 33 (nee Wagl, 1830). 



Teeth very large, stout, occupying nearly the entire length of the 

 rostrum which is broad and elongated, flattened above and rounded 

 anteriorly. Pterygoids separate, premaxillse concave before the 

 nares, narrow in the middle and widening towards end. Head 

 depressed; no beak; dorsal large, prominent, pointed; pectoral fins 

 large, ovate. First and second vertebra?, sometimes the third, coa- 

 lesced. Vertebra^, 52. 



30. gladiator. {Delphinus), Bonnat. Cdt., 1789, p. 23. 



arctiais and europaus, Gerv. & Van Ben. Ost. Cet., 1804, p. 314. 



schlegelii, Lilljeb. Roy, Soc. , 1866, p. 235. 



latirosiris, Gerv. Ost. C^t. , i858, p. 543. 



stenorhyncha, Gray, Proc. Zool. Soc, 1870. p. 74. 



Type locality. Coast of Europe. 



Geogr. Distr. All seas. 



Genl. Char. Size large, characters those of the genus. 



Color. Upper portion of head and body, and all of the fins black; 

 under jaw, throat, breast and belly white; a white trident-shaped area 

 extends back to the vent with one tine, the two others passing 

 obliquely upwards and backward on the sides. A large white patch 

 behind the eyes. Behind dorsal fin is a crescentic purple area. 



Measurtinents. Total length about 16 feet. 



31. rectipinna. {Ona), Cope, Proc. Acad. Nat. Scien. Phil., 1869, p. 



22, figs. 15 and 16. 

 atra. Cope, Proc. Acad. Nat. Scien. Phil., 1869, pp. 22, 58, 



fig- 17- 



Type locality. Pacific coast of United States. 



Geogr. Distr. Pacific Ocean. California to the Aleutian Islands. 



Genl. Char. Muzzle slightly acuminate, dorsal fin long, "six 

 feet or more in larger males " placed one-third the length from muzzle. 



Color. Black; white beneath with white lines on the sides from 

 e}'es to hinder margin of dorsal fin. 



Meastiri'wents. Total length about 20 feet; height of dorsal fin, 

 6 feet. 



18. Pseudorca. 



^: = 40. 



Pseudorca, Reinh. Overs. Dan. Sezsk. Forh., 1S62, p. 151. Type 



P. irassidcns, Owen. 



Rostrum short, broad, rostral portion of intermaxilla- truncated 



at distal end; pterygoids short, approximated on median line; teeth 



large, roots cylindrical. Vertebrs, 50; the first to sixth or seventh coa- 



