22. End of nose flattened; length more than four and one-half times the length 



of the head (to the rear margin of the tympanum) ; general color brown- 

 ish; warts large and usually only one or two to a color spot; adults often 

 over four inches long; western states to Iowa 



Bufo ivoodhousii woodhousn Girard Rocky Mountain Toad 

 End of nose rounded; length less than four and one-half times the length 

 of the head; general color grayish; warts small and usually several to a 

 color spot; adults seldom much over three inches long; Maine to 

 Georgia, and westward to Michigan. Iowa and Texas 



Bufo woodhousn fowleri Hinckley Fowler's Toad 



23. Parotoid gland as large as the side of the head and descending on the side 



below the tympanum 24. 



Parotoid gland smaller and higher 25. 



24. Nostrils at tip of snout; dark color on back in a more or less reticulated 



pattern; Kansas to Texas and N. M. 



Bufo msidior Girard Reticulated Toad 

 Nostrils not quite at tip of snout; back usually dark dotted; Texas 

 Bufo dehilis Girard Little Green Toad 



25. Parotoid glands almost evenly round or triangular, about the size of the 



eyes; Kansas to Texas and California 



Bufo punctatus B. & G. Canyon Toad 

 Parotoid glands definitely longer or larger 26. 



26. No definite, light, mid-dorsal streak; belly usually plain; no gland on 



tibia 27. 



With a light mid-dorsal streak; belly usually spotted; an enlarged gland 



on the tibia 28. 



27. Body skin enclosing femur; Nevada to Okla. and Texas 



Bufo compactilis Wiegmann Compact Toad 

 Body skin about half enclosing femur; California 



Bufo calif ornicus (Camp) Southern California or Arroyo Toad 



28. Space between the parotoid glands slightly less than the width of one 



gland; Sierra Nevadas, California 



Bufo canorus Camp Yosemite Toad 

 Space between the parotoid glands greater than the width of one gland 29. 



29. Black markings on belly about half obscuring light color; rear parts black, 



with light tubercles; restricted to springs in Inyo County, California 

 Bufo exsul Myers Black Toad 

 Dark markings on belly fewer and more restricted; rear parts gray 30. 



30. Limbs very short; elbow and knee do not meet when pressed toward each 



other along the side; southern Nevada 



Bufo horeas nelsoni Stejneger Nelson's Toad 

 Limbs longer; elbow and knee of appressed fore and hind limbs meeting 

 or overlapping 3L 



31. Belly usually well spotted with dark; nose pointed and sloping; Colorado 



to northern California, and northward 



Bufo horeas horeas (B. 5? G.) Northwest Toad 

 Belly usually scarcely dark spotted; nose short and steep; Cal. and Nevada 

 Bufo horeas halophilus (B. ^ G.) California Toad 



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