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20. FENCE LIZARD. Sceloporus occidentalis biseriatus. 
Common throughout the county except the Colorado Desert 
and in the lower bordering foothills. Food, insects. 
21. ROUGH-SCALED LIZARD. Sceloporus magister. 
Occasional on the eastern slope of the mountains below 3,000 
feet altitude. Frequent yuccas, rocks and brush thickets. Food, 
insects. 
22. ORCUTT LIZARD. Sceloporus orcutti. 
Common from the sea coast eastward part way down the 
mountains. Found in brush and among rocks. 
23. BLAINVILLE HORNED LIZARD, “Horned Toad.” 
Phyrnosoma blainvillei. 
Common in the coast region, occasional in the mountains. 
Food, ants, beetles and other insects. 
24. DESERT HORNED LIZARD. Phyrnosoma platyshinus. 
Common in the Colorado Desert and in valleys on the eastern 
slope of the mountains. 
25. FLAT-TAILED LIZARD. Anota mccalli. 
Colorado Desert and lower part of the valleys in the border- 
ing foothills. Not common. 
Family ANGUID/E. 
26. SAN DIEGO ALLIGATOR LIZARD. Gerrhonotus 
scincicaudus webbi. 
Common in the coast region and occasional on the western 
slope of the mountains. This comparatively slow moving snake- 
like lizard is harmless, like all lizards living in this county. The 
food is insects, with occasionally a small lizard of some other 
species. 
Family ANNIELLIDA. 
Lizards of this family lack legs but rudiments of the pelvic 
girdle may be found by dissection. The tail is very blunt and the 
animal looks more like an angleworm than a lizard. 
27. SILVERY FOOTLESS LIZARD. Anniella pulchra. 
Found in a sandy or soft soil throughout the central and 
western part of the county. Usually burrow in the soil in the 
daytime. I have found them under boards and stones. 
Family XANTUSIDZE. 
A family of quite small lizards having small scales on the 
upper surface and large ones in conspicuous transverse series on 
the belly. They are nocturnal. 
28. DESERT NIGHT LIZARD. Xantusia vigilis. 
Rather common in semi-desert localities on the eastern slope 
of the mountains, mostly under the dead leaves of yuccas and 
agaves. 
