406 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 
We therefore regard this name and P. hernandesi as synonyms. 
In southern Arizona this lizard seems to be confined to the 
higher levels of the mountains. A large female taken in the 
Huachucas in July contains a number of young, showing that 
this species is ovoviviparous. 
Femoral pores in twenty specimens vary from eleven to 
nineteen ; being 11 once, 12 six times, 13 three times, 14 eleven 
times, 15 eight times, 16 four times, 17 three times, 18 once, 19 
once. 
31.—Phrynosoma solare Gray 
Twenty-three specimens are at hand. No. 35185 was col- 
lected at Fairbank, Cochise Co., August 12, 1912. No. 20933, 
was caught at Fort Lowell. Four were secured at Tucson 
May 30—Aug. 23, 1912, and one June 29, 1911. No. 34322 
was found at the steam pump in the foothills of the Catalina 
Mountains, eighteen miles north of Tucson, July 9, 1912. The 
other fifteen are from Phoenix, where they were collected 
March 15—June 6, 1910. 
Femoral pores in twenty specimens vary from fourteen to 
twenty-six; being .14 once, 15 once, 17 twice, 18.four times, 19 
three times, 20 eight times, 21 eight times, 22 six times, 23 five 
times, 24 once, 26 once. Unlike the preceding, this horned 
toad is a desert. species. 
34.—Phrynosoma platyrhinos Girard 
Two specimens (Nos. 34210, 34211) were caught at Papago 
Wells, in the southeastern part of Yuma County, April 16-22, 
1912. Femoral pores are 7-6 and 9-7. 
35.—Phrynosoma m/’callii (Hallowell) 
Three specimens (Nos. 33486, 33487 and 33657) were col- 
lected at Yuma! Mareh 14 and 15, and Sept. 12) 19120) eu 
were secured on the sand hills east of town. One was found 
sitting on an ant hill, but not an ant was in sight although a 
half hour later they were swarming over it. It seemed as 
though the ants remained under cover in the nest as long as 
the lizard was watching for them. Femoral pores are 18-19, 
21-23, and 18-18. 
36.—Heloderma suspectum Cope 
Our collections include twenty Gila Monsters. No. 35301, 
was caught in a wash on the grounds of the Desert Laboratory, 
