516 University of California Publications in Zoology [Vol. 12 



their sides become taut, and may then be pulled from a small hole only 

 with difficulty. "With curiosity aroused they prop themselves high on 

 their fore limbs, attentively viewing the passer-by and seldom ' ' show- 

 ing off" with up-and-down movements of the body. 



These lizards are phytophagous and may be sometimes surprised 

 in the act of raiding the young leaves of low bushes, in the upper 

 foliage of which they forage during the hottest part of the day. The 

 stomach of a medium-sized individual contained two grams of the 

 leaves and fruit of a malvaceous annual, Sphaeralcea ambigua. 



Remains of a desert iguana were found below the cliff -side nest of a 

 prairie falcon where, on June 6, 1914, two nearly grown young falcons 

 set up a squawking chorus at my approach. 



Uma notata Baird 

 Ocellated Sand Lizard 



In the drifting sand two miles south of Blythe Junction, thirteen 

 specimens of this extraordinary species were obtained (nos. 5444— 

 5456). Some have the identical characters ascribed only to Uma rufo- 

 punctata by Cope (1900, pp. 279-281), while the smallest specimens 

 are referable to Uma notata as described by Cope (1900, pp. 277-279) 

 and Baird. It seems almost certain that the separation indicated is 

 based on nothing more than individual and age differences. It ap- 

 pears also likely that the other two described species of this genus are 

 but extreme variations of notata. Both scoparia and inornata were 

 described from localities which lie within the probable range of notata, 

 and in each case the type is the only known example. Three specimens 

 at hand from Imperial County, California (doubtless near the type 

 locality of inornata), have distinct spots on the belly and are not dif- 

 ferent from individuals in the Blythe Junction series. Most of the 

 characters supposedly distinctive of scoparia, including the diamond- 

 shaped dorsal scales and black dorsal spots, are expressed in indi- 

 viduals of the present series. The increased number of femoral pores 

 in the type specimen of scoparia finds a parallel in individuals of other 

 species of lizards and is probably also in this case not to be considered 

 of systematic importance. 



The femoral pores (including the accessory row) in the series col- 

 lected near Blythe Junction number 25 in one thigh, 27 in one, 28 in 

 one, 29 in three, 30 in four, 31 in four, 32 in four, 33 in one, 34 in 

 four, and 35 in two ; being J 1 35 right : 35 left once, $ 34 :34, ? 34 :29, 



