1917] Grinnell-Camp: Amphibians and Reptiles of California 141 
Rance.—Only along the Colorado River north to Needles, San 
Bernardino County, and in the Salton Basin northwest to Mecea, 
Riverside County (Mus. Vert. Zool.).  Life-zone, Lower Sonoran. 
Inhabits overflow bottom-lands and irrigated districts. (See fig. 4.) 
Bufo cognatus cognatus 
Bufo cognatus californicus 
Bufo boreas boreas 
Bufo boreas halophilus 
Intergrade 
Bufo boreas nelsoni 4 
Bufo canorus 
Bufo punctatus 
Bufo alvarius | 
Bufo woodhousii 
+pP1LB880000e 
Range of Bufo boreas and 
subspecies solidly outlined 
Southern limits of Bufo boreas 
boreas indicated by broken line 
DISTRIBUTION MAP 
MUSEUM OF YERTEBRATE ZOOLOGY 
Fig. 4. Distribution of Toads (Bufo) in California. 
Bufo cognatus californicus Camp 
Arroyo Toad 
Ortemnau Description.—Bufo cognatus californicus Camp, Univ. 
Calif. Publ. Zool., 12, April 2, 1915, pp. 331-334. 
Type Locauiry.—Santa Paula, Ventura County, California. 
