Figure 1.— A color variant of a white Dall's porpoise, Phocoenoides dalli, sighted 8 km south of Kushiro, Japan, from the Japanese 



research vessel Hokushin Maru. 



were supported by the Dall's Porpoise Project, 

 NMML, NMFS, and were made possible by the 

 cooperation of the Japanese Fisheries Agency, 

 through an agreement of the International 

 Convention for the High Seas Fisheries of the 

 North Pacific Ocean. H. Braham, M. Dahlheim, 

 and L. Jones reviewed this paper. 



Literature Cited 



Andrews, R. C. 



1911. A new porpoise from Japan. Bull. Mus. Nat. Hist. 

 3:31-52. 

 Cowan, I. M. 



1944. The Dall porpoise, Phocoenoides dull i (True),of the 

 northern Pacific Ocean. J. Mammal. 25:295-306. 

 Morejohn, G. V. 



1979. The natural history of Dall's porpoise in the North 

 Pacific Ocean. In H. E. Winn and B. L. Olla (editors). 

 Behavior of marine mammals, Vol. 3, p. 45-83. Plenum 

 Press, N.Y. 

 Morejohn, G. V., V. Loeb, and D. M. Baltz. 



1973. Coloration and sexual dimorphism in the Dall 

 porpoise. J. Mammal. 54:977-982. 

 NlSHIWAKI, M. 



19(56. A discussion of rarities among the small cetaceans 

 caught in Japanese waters. In K. S. Norris (editor), 



Whales, dolphins and porpoises, p. 192-204. Univ. 

 Calif. Press, Berkeley. 

 True, F. W. 



1885. On a new species of porpoise, Phocaena dalli, from 

 Alaska. Proc. U.S. Natl. Mus. 8:95-98. 

 Wilke, F., T. Taniwaki, and N. Kuroda. 



1953. Phocoenoides and Lagenorhynchus in Japan, with 

 notes on hunting. J. Mammal. 34:488-497. 



Gerald G. Joyce 



Fisheries Research Institute 



University of Washington, Seattle, Wash. 



Present address: National Marine Mammal Laboratory 



Northwest and Alaska Fisheries Center 



National Marine Fisheries Service, NOAA 



7600 Sand Point Way NE, Seattle, WA 98115 



John V. Rosapepe 



National Marine Mammal Laboratory 

 North west and Alaska Fisheries Center 

 National Marine Fisheries Service, NOAA 

 7600 Sand Point Way NE, Seattle, Wash. 

 Present address: 3 E South Fairway 

 Pullman, WA 99163 



JUNROKU OGASAWARA 



Hokkaido, Kushiro F.E.S. 



2-6 Ha macho 



Kushiro, Hokkaido, Japan 



402 



