U. S. NATIONAL MUSEUM 



BULLETIN 36, PL. XXXV:i 



Fig. 1. D ALL'S HARBOR PORPOISE. 

 Phocmna dallii True. 



(From a drawing by William H. Dall.) 



Fig. 2. BALL'S HARBOR PORPOISE. 

 Phoccena dallii True. 



(From a drawing by William H. Dall of the type-skull, No 21762, in the U. S. National Museum.") 



Genus PHOC/ENA. 



