148 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. 
II. Swartont CANON, SAN BERNARDINO COUNTY 
1. Uta stansburiana Baird & Girard—One typical speci- 
men taken July 29, 1899. 
2. Sceloporus biseriatus Hallowell—Several. July 29, 
1899. 
3 Phrynosoma blainvillii Gray.—Three specimens, caught 
July 29, 1899, are nearly intermediate between this species and 
P. frontale as regards the character of their head-plates. It 
therefore becomes necessary to regard the northern flat-scaled 
form as a subspecies of P. blainvillu under the name Phryno- 
soma blainvillii frontale. The characters which distinguish 
these two forms are remarkably constant in specimens from 
northern Lower California, San Diego County, and Riverside 
County on the one hand, and the territory North of 35° on the 
other. 
Mr. Coolidge notes that the largest specimen of the three, a 
female, squirted blood three times from its eyes when captured. 
4. Gerrhonotus scincicauda ignavus Van Denburgh.—The 
only specimen is so young that it does not show the characters 
of this subspecies very distinctly, but can be identified by the 
character of the keeling of its caudal scales. It was taken July 
29) beO9: 
III. Victor, SAN BERNARDINO COUNTY 
1. Sceloporus magister “Hallowell—-One male and one 
female typical of this species were obtained in May, 1897. The 
former has twelve femoral pores. 
IV. Cajon Pass, SAN BERNARDINO COUNTY 
1. Callisaurus ventralis (Hallowell).—A single lizard of 
this species was found July 25, 1899. 
2. Uta stansburiana Baird & Girard—Two typical exam- 
ples were taken July 25, 1899. 
3. Sceloporus biseriatus Hallowell—This fence-lizard is 
represented in the collection by a single specimen taken July 
Ho) tes), 
4. Phrynosoma blainvillii Gray.—Ten adult and several 
young specimens were secured in July, 1897. Two have head- 
