202 University of California Publications in Zoology [Vol. 27 
the two present certain points of difference. The fact that the two 
occur on common ground as in Colorado is an additional argument for 
specific distinctness. Cope’s (18666) Bufo front osus belongs here. 
Range. — Bufo woodhousii, while called the Kocky Mountain Toad, 
occupies a somewhat greater extent of territory than is indicated by 
its vernacular name. It is the characteristic species throughout the 
southern part of the Kockies. The northward extent of its distri- 
bution is as yet not well known. Fort Custer, Montana (Cope, 1889, 
p. 284), seems to be the most northerly record to date. Cary (1917, 
pp. 27, 33) lists this species as occurring in the Upper Sonoran and 
Transition zones of Wyoming, but without specific localities ; Cope 
(lac. cit.) gives Fort Laramie as a locality of record. In Colorado, 
woodhousii is present in many places from Greeley and Grand Junc- 
tion south to Durango and Lamar (Ellis and Henderson, 1913, pp. 
54-55). It has been recorded from Nebraska at “swamps on Loup 
Fork” and from “Kansas” (Cope, loc. cit.). The material from these 
localities would seem to need reexamination. In Texas, Strecker 
(1915, p. 53) restricts woodhousii to the extreme western end of the 
state in Brewster and Jeff Davis counties and at El Paso; this author, 
who considers woodhousii as a subspecies of lentiginosus, discusses 
Dickerson’s (1906, pis. 25, 26) record for Fort Worth under ameri- 
canus. Woodhousii seems to be widespread in New Mexico from the 
Eio Grande Kiver westward to Grant County and to Fort Wingate 
(Van Denburgh, 1924, p. 197 ; et al.). In Arizona it has been found 
south to Willcox, Cochise County (Mus. Vert. Zool.), Camp Critten- 
den (Yarrow, 1875, p. 521), and Yuma (Van Denburgh and Slevin, 
1913, p. 394). It ranges into southern Nevada in Lincoln County at 
Caliente (Stone, 1911, p. 223), Bunkerville (Mus. Vert. Zool.), and 
Pahranagat and Vegas valleys (Stejneger, 1893, p. 221). In Utah it 
has been found at Fort Douglas near Salt Lake City and in other 
localities to the eastward (Van Denburgh and Slevin, 1915, pp. 101- 
102), and at Bellevue, Washington County (Engelhardt, 1918, p. 78). 
In California, Bufo woodhousii is restricted to the extreme south- 
eastern corner of the State along the Colorado Kiver where it has been 
found at Potholes and 5 miles northeast of Yuma on the California 
side (Grinnell and Camp, 1917, p. 142). 
Dickerson (1906, p. 93) states that the vocal sac of this species 
can be extended into a rounded throat pouch. The call [of the male] 
is a vibrated note of high pitch and sweet quality. It is said to 
resemble that of amerioanus and lentiginosus, which fact this writer 
