Amer. 272(4):52-57. 

 Bragg, A. N. 1940. Observations on the ecology and natural history of Anura. I. Habits, habitat 



and breeding oiBufo cognatus say. Amer. Nat. 74:322-438. 

 Breckenridge, W. J. and J. R. Tester. 1961. Growth, local movements, and hibernation of the 



Manitoba toad, Bufo hemiophrys. Ecology 42:637-646. 

 Brodie, E. P., JR. and R. M. Storm. 1970. PLETHODON VANDYKE!. Cat. Amer. Amph. and 



Rept. 91.1-2. 

 Brunson, R. B. 1952. Recent collections of Bufo boreas boreas from western Montana. Proc. 



Montana Acad. Sci. 11:17-19. 

 Brunson, R. B. 1955. Check list of the amphibians and reptiles of Montana. Proc. Mont. 



Academy Sci. 15:27-29. 

 Brunson, R. B. and H. A. Demaree. 1951. The herpetology of the Mission Mountains, Montana. 



Copeia 1951:306-308. 

 Bury, R. B., P. S. Com, K. B. Aubry, F. F. Gilbert and L. L. C. Jones. 1991. Aquatic amphibian 



communities in Oregon and Washington. U.S.D.A. For. Serv., Pac. NW Res. Station Gen. 



Tech Rep. PNW-GTR-285:353-362. 

 Carey, C. 1993. Hypothesis concerning the causes of the disappearance of boreal toads from the 



mountains of Colorado. Conser\'ation Biology 7(2):355-362. 

 Cassirer, E. F., C. R. Groves, and D. L. Center. 1994. Coeur d'Alene salamander conservation 



assessment. U.S.D.A. Forest Service, Region 1, Missoula, MT. 55 pp. 

 Cassirer, E. F., J. D. Reichel, R. L. Wallen, and E. Atkinson, in review. Harlequin Duck 



{Histrionicus histrionicus) conservation assessment and strategy for the U.S. Rocky 



Mountains. 54 pp. 

 Censky, E. J. 1986. SCELOPORUS GRACIOSUS. Cat. Amer. Amph. and Rept. 386.1-4. 

 Cheek, W. K. 1995. Population and biomass estimation of turtles at Spring Meadow State Park, 



Helena, Montana. Honors thesis. Carroll College, Helena. 29 pp. 

 Clark, T. W., A. H. Harvey, R. D. Dom, D. L. Center, and C. Groves, eds. 1989. Rare, sensitive, 



and threatened species of the Greater Yellowstone Ecosystem. Northern Rockies 



Conser\'ation Cooperative, Montana Natural Heritage Program, The Nature Conservancy, and 



Mountain West Environmental Services. 153 pp. 

 Coen, B. (ed). 1992. Science in Glacier National Park 1991-1992: the annual report of the 



Cooperative Park Studies Unit Glacier National Park and the University of Montana. 72 pp. 

 Comer, R. D., P. R. Davis and S. Q. Foster et al. (eds.). 1991. Issues and technology in the 



management of impacted wildlife. Thome Ecological Inst., April 8-10, Snowmass, CO. 223 



pp. 

 Conant, R. 1975. A field guide to reptiles and amphibians of eastern and central North America. 



Second edition. Houghton Mifflin Co., Boston, xvii + 429 pp. 

 Cope, E. D. 1872. Report of the recent reptiles and fishes of the surs'ey, collected by Campbell 



Carrington and C. M. Dawes. In: F. V. Hayden's Preliminary report of the United States 



Geological Survey of Montana and portions of the adjacent territories. Geological and 



Geographical Sur\'ey of the Territories, 5th annual report. Pp. 467-469. 

 Cope, E. D. 1879. A contribution to and zoology of Montana. American Naturalist 



13(7):432-^^V 



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