152 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 
XIV. Oak GrRovE, SAN DiEGOo CouNTY 
1. Callisaurus ventralis Hallowell—vTen were taken near 
Oak Grove in July. 
2. Crotaphytus wislizenii Baird & Girard—A leopard liz- 
ard was obtained in July, 1897. 
3. Uta stansburiana Baird & Girard. 
4. Sceloporus biseriatus Hallowell.—This species was col- 
lected in July, 1897. 
5. Sceloporus orcutti Stejneger. 
6. Phrynosoma blainvillii Gray.—Three young horned- 
toads are labeled Oak Grove. 
7. Verticaria hyperythra beldingi Stejneger—Two typical 
examples of Belding’s Orange-throat were secured in July, 
1897. 
8. Thamnophis hammondii (Kennicott).—This very dis- 
tinct species is represented from this locality by one young and 
one adult specimen taken in July, 1897. 
XV. CovoTE CANON, CoLorADO DESERT, SAN DiEGO CoUNTY 
1. Crotalus mitchellii Cope—One rattlesnake typical of this 
species was secured in Coyote Cafion. It appears to differ in 
no way from specimens from the Cape Region of Lower Cali- 
fornia. 
XVI. Fort YuMA, IMPERIAL COUNTY 
1. Crotaphytus wislizenii Baird & Girard.—This lizard 
was found at Hall Hanlon’s Ranch June 2, 1899. 
2. Uta stansburiana Baird & Girard.—Brown-shouldered 
lizards were taken at Hanlon’s, May 28, 1899. 
XVII. Yuma, ARIZONA 
1. Coleonyx variegatus Baird.—One male with six preanal 
pores. 
2. Dipsosaurus dorsalis Baird & Girard.—28 specimens of 
this lizard are in the collection. Of these, 25 have nasals of 
both sides separated from the rostral by two rows of scales, 
while in three cases, on one side of the head but a single row 
intervenes. 
