Remarks : This toad is considered to be a subspecies of Bufo boreas by some authors. 



References : 



Bury, R. B. 1972. Status report on California's threatened amphibians and reptiles. 



Inland Fisheries Administrative Report 72-2 . California Dept. of Fish and Game. 

 Leach, H. R. and L. D. Fisk. 1972. At the crossroads — a report on California's 



endangered and rare fish and wildlife. California Dept. of Fish and Game. 

 Miller, R. R. 1967. (pers . comm. ) . 



Myers, G. S. 1942. Occ . Pap. Univ. Mich. Mus . Zool . No. 460. 

 Pister, P. 1971. Survival in the desert . D.F.G. Helps college to perpetuate the 



rare black toad. Outdoor California, 32 (1-2): 16. 

 Savage, J. and F . W. Schuierer . 1961. Bull. S. Calif. Acad. Sci., 60. 

 Schuierer, F. W. 1961. Herpetologica, 17. 



. 1962. Herpetologica, 18. 



. 1972. The status of the endangered species Bufo exsul Myers, 



Deep Springs Valley, Inyo County, California. Herpetological Review, 



4(2): 81-82. 



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