400 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. 
found at the steam pump eighteen miles north of Tucson, and 
in Ventana and Sabino Canyons, April 4—May 2, 1912, and 
eleven were collected at Cave Creek, Maricopa County, April 
4—_May 27, 1910. 
. This lizard is easily distinguished from H. maculata ap- 
proximans by black cross-bars on the lower surface of the tail, 
and large blue patches on the sides of the belly. Its habit of 
constantly wanting to get up on the tops of boulders attracts 
attention to it in life. It is a larger species than H. m. approx- 
imans, being about equal in size to Callisaurus ventralis which 
it much resembles. 
Femoral pores vary from 11 to 18; being 11 once, 12 twice, 
13 seven times, 14 eighteen times, 15 twenty-two times; 16 
ten times, 17 five times, and 18 three times in thirty-four 
specimens from the Catalina Mountains. 
21.—Callisaurus ventralis (Hallowell) 
Three hundred and eighty-seven Arizonan specimens of this 
species are before us. One hundred and thirty of these are 
from Yuma, Feb. 7-28, 1910, March 11-21, 1912, June 8-24, 
1910, and Sept. 9-17, 1912. Sixteen were shot at Papago 
Wells, Yuma Co., April 16-22, 1912. Two were secured at 
Growler Well, and four at Ajo in western Pima Co., April 
16-22, 1912. One hundred and thirty-one were collected at 
Cave Creek, Maricopa Co., April 2—May 14, 1910. Three 
were preserved at Phoenix, March 16-22, 1910; and others 
were found at Tucson, April 1-13, 1912, at the steam pump 
in the foothills of the Catalina Mts., 18 miles north of Tucson, 
May 3-18, 1912; at Ventana Canyon, Catalina Mts., June 14, 
191 at old Hort, Wowellh Marca 29° 192 - and ate Nena 
Caliente, six miles east of Fort Lowell, May 14, 1911. 
Femoral pores in forty-one specimens range from 11 to 21; 
being 11 once, 13 once, 14 four times, 15 fifteen times, 16 
thirteen times, 17 twenty-one times, 18 twelve times, 19 four 
times, 20 five times, 21 twice. 
22.—Uta stansburiana Baird and Girard 
Ninety-eight specimens from Arizona are at hand. They 
were secured: forty-four at Yuma, March 11-21, 1912, Sept. 
10-17, 1912, Dec. 4, 1910; fifteen at,Papago Wells, Yuma 
County, April 16-22, 1912; four at Ajo, western Pima County, 
