U. S. NATIONAL MUSEUM 



BULLETIN 36, PL. X 



Fig. 1. Tkcs/o/js 'jiUii Dall. 



(From Scammon, Marine Mammalia; 1874, p. 102, Approximate outlines.) 



Fig. 2. Tvrsiops giUii Dall. 

 (From the type-skull, No 12054, in the U. S. National Museum.) 



Genus TURSIOPS. 



