268 



NORTH AMERICAN FAUNA 74 



zoo yearbook. Volume 6, 1966. Hutchinson, London. 



Brown, R. 1868. Notes on the history and geographical relations of the Pinnipedia fre- 

 quenting the Spitzbergen and Greenland seas. Proc. Zool. Soc. (London) 1868:405^40. 



Bruce, W. S., and W. E. Clarke. 1899. The mammaha and birds of Franz Josef Land, 

 I. Mammalia. Proc. R. Phys. Soc. (Edinburgh) 14:78-86. 



Bryden, M. M. 1968. Lactation and suckling in relation to early growth of the southern 

 elephant seal, Mirounga leonina (L.). Aust. J. Zool. 16:739-748. 



Buckley, J. L. 1958. The Pacific walrus, a review of current knowledge and suggested 

 management needs. U.S. Fish Wild!. Serv., Spec. Sci. Rep.-Wildl. 41. 29 pp. 



Burne, R. H. 1909. Notes on the viscera of a walrus {Odobenus rosmarus). Proc. Zool. Soc. 

 (London) 1909:732-738. 



Burns, J. J. 1965. The walrus in Alaska, its ecology and management. Alaska Department 

 Fish and Game, Juneau. 48 pp. 



Burns, J. J. 1970. Remarks on the distribution and natural history of pagophilic pinni- 

 peds in the Bering and Chukchi seas. J. Mammal. 51:445-454. 



Burns, J. J. 1973. Report of survey and inventory activities: walrus studies. Federal Aid 

 in Wildhfe Restoration. Volume 1. Alaska Department Fish and Game, Juneau. 12 pp. 



Cahalane, V. H. 1947. Mammals of North America. Macmillan, New York. 682 pp. 



Caldwell, D. K. 1964. Tusk twinning in the Pacific walrus. J. Mammal. 45:490-491. 



Cammann, S. 1954. Carvings in walrus ivory. Pa. Univ. Mus. Bull. 18(3):3-31. 



Carrick, R., S. E. Csordas, and S. E. Ingham. 1962. Studies on the southern elephant 

 seal, Mirounga leonina (L.). IV. Breeding and development. CSIRO Wildl. Res. 

 7:161-197. 



Carthy, J. D., and F. J. Ebling, editors. 1964. The natural history of aggression. Aca- 

 demic Press, New York. 159 pp. 



Chandler, E. W. 1943. The walrus gets a rest. Alaska Sportsman 9(2): 14-15, 18. 



Chapman, D. G. 1964. A critical studv of Pribilof fur seal population estimates. Fishery 

 Bull. 63:657-669. 



Chapman, D. G., L. L. Eberhardt, and J. R. Gilbert. 1977. A review of marine mammal 

 census methods. U.S. Dep. Commer. Nat. Tech. Inf. Serv. (Springfield, Va.), 

 PB-265-547. 55 pp. 



Chapskii, K. K. 1936. The walrus of the Kara Sea. Trudy Vsesoiuz. Arkt. Inst. 

 (Leningrad) 67:1-124. 



Chapskii, K. K. 1940. Distribution of the walrus in the Laptev and East Siberian Seas. 

 Problemy Severa (Leningrad) 6:80-94. 



Chapskii, K. K. 1941. Marine animals of the Soviet Arctic. Biblioteka Arktika. Glav- 

 sevmorput', Leningrad. 186 pp. 



Chechulin, A. S. 1936. Observations of large marine animals from aboard the ice- 

 breaker Krasin during the expedition to the Bering and Chukchi Seas in 1934. Pages 

 83-89 in Severnyi morskoi put'. Volume 5. Glavsevmorput', Leningrad. 



Clark, A. H. 1887. The Pacific walrus fishery. Pages 313-318 in G. B. Goode, ed. The 

 fisheries and fisher\' industries of the United States. Volume 2, sec. 5. U.S. Government 

 Printing Office, Washington, D.C. 



Cleland, J. 1900. Duplicity of cervix uteri in Trichechus and Otaria.]. Anat. Physiol. 

 (London) 34(n.s. 14): 159-163. 



Cloete, J. H. L. 1939. Prenatal growth in the Merino sheep. Onderstepoort J. Vet. Sci. 

 Anim. Ind. (Pretoria) 13:417-558. 



Coates, C. W., and J. W. Atz. 1958. Olaf: 1,000 pounds of walrus charm. Anim. King- 

 dom 61:66-72. 



Cobb, W. M. 1933. The dentition of the walrus {Odobenus obesus). Proc. Zool. Soc. 

 (London) 1933:645-668. 



Cole, H. H., and P. T. Cupps, editors. 1959. Reproduction in domestic animals. Aca- 

 demic Press, New York. Vol. 1, 651 pp.; Vol. 2, 451 pp. 



Collins, G. 1940. Habits of the Pacific walrus {Odobenus divergens). J. Mammal. 

 21:138-144. 



Collins, H. B. 1937. Archaeolog\- of St. Lawrence Island, Alaska. Smithsonian Misc. Coll. 

 96(1):1^31. 



Colyer, F. 1936. Variations and diseases of the teeth of animals. John Bale, Sons & Dan- 

 ielsson, Ltd., London. 750 pp. i 



