704 13. COLUBRID 
Length to anus_._-_-.-... 231 282 730 860 870 Chly/ 
Length of tail_.._____ aesk: 33 122 160 125 145 
Distribution.—This beautiful snake has been taken in 
Texas, Oklahoma, New Mexico, Arizona, California, and 
Lower California. 
In Mexico, it ranges south to the city of Chihuahua. 
It occurs in both Upper and Lower Sonoran zones. 
In Arizona, it has been taken near Tucson, Pima County; 
at Camp Grant, Graham County; on the mesa south of 
Fort Mohave, Mohave County; near Phoenix, Maricopa 
County; and at Yuma, Yuma County. 
In Lower California, it probably is confined to the 
northern end of the peninsula, where it has been secured at 
Ensenada, San Tomas, and San Quintin. 
In California, the most northern localities are Fresno, 
Fresno County, and McKittrick, Kern County. Farther 
south, it has been found in Los Angeles (Alhambra), San 
Bernardino (near Ontario), Riverside (Riverside, San Jacin- 
to), and San Diego (between Carlsbad and Oceanside, War- 
ner’s Ranch, Pacific Beach, west slope of coast range on San 
Diego wagon road, Campo, and Vallecito), counties, and 
on the Mohave Desert. 
Habits—A captive individual ate a Brown-shouldered 
Lizard (Uta stansburiana). A fine male dug out of a hole 
in a sand hill east of Yuma, Arizona, contained a Dipso- 
saurus dorsalis which it had eaten. 
Genus 33. Pituophis 
Pituophis Horproox, N. Amer. Herpet., Ed. 2, Vol. IV, 1842, p. 7 
(type, melanoleucus). 
Churchillia Barrp & Girarp, Stansbury’s, Exped. Gt. Salt Lake, 1852, 
p. 350 (type, Sel/ona). 
The body is long but rather stout, with tail of moderate 
length. The neck usually is slightly constricted, so that the 
