1908] Grinnell_—Biota of the San Bernardino Mountains. 161 
Uta stansburiana Baird & Girard. Brown-shouldered Lizard. 
This lizard was numerous all along the lower Santa Ana and 
Mill creek. It was noted June 12 on the brushy slopes west of 
Clarke’s ranch, and occurred more sparingly along the upper 
Santa Ana from Seven Oaks as high at least as the mouth of Fish 
ereek, 6500 feet altitude. Specimens were taken at the latter 
point the middle of June, 1905. The brown-shouldered lizard 
appears to be confined to the Upper and Lower Sonoran zones. 
Sceloporus graciosus Baird & Girard. Mountain Lizard. 
This was found to be the only lizard common above the Upper 
Sonoran zone, and it appeared to be confined closely to the Tran- 
sition. About the head of the Santa Ana and its tributaries from 
5500 to 8500 feet altitude the species was in places conspicuously 
abundant. On stumps, logs, and rock piles it was to be seen in 
the hot part of the day, actively Jumping and darting about in 
search of insects. It was surprising how far one of these little 
lizards could jump from one rock to another and how quick its 
movements were in darting after ants or grasshoppers. We 
found the species on the ridge south of Bluff lake, July 15, 1905, 
but not further on the desert side of the mountains. <A large 
series was easily noosed. A very nearly constant color character 
of this species was a strong salmon pink suffusion on the sides 
just back of the arm-pits. This fades out entirely after the 
lizards have been in aleohol or formalin a few days. 
The food of this lizard may be judged from the following 
stomach contents in four cases examined July 26, 1907. The 
lizards were caught about the middle of the forenoon, chloro- 
formed, and dissected at once. 
No. 1—@: 10 wood-ants, 1 small brown June beetle, and 2 geometrid 
larve. 
No. 2—6: 20 small sand-ants, and 2 small fragments of green leaves 
(possibly taken in incidentally with the ants). 
No. 3—@: 7 large winged 2? wood-ants. 
No. 4—?: 1 small brown June beetle, 1 small worker wood-ant, and 5 
large winged 2 wood-ants. 
Sceloporus bi-seriatus Hallowell. Fence Lizard. 
This proved to be an abundant species in both the Upper and 
Lower Sonoran zones. It was noted all along the lower Santa 
