754 13. COLUBRIDA 
more or less spotted or blotched with dark brown along the 
edges of the plates. The nape and the top of the head be- 
hind the prefrontal plates are dark brown or black, with a 
varying number of white or yellow spots, one of which is 
very constantly present just behind the parietal plates. The 
body and tail are marked with great blotches or rings of 
brown or black, separated by narrower rings of yellow or 
white. These white rings are much broader on the sides 
than near the middle of the back, and vary in number from 
23 to 39 on the body and five to 10 on the tail. The mark- 
ings of the sides are continued onto the lower surfaces. 
Length to anus... 317 383 586 733 921 954 
Length of tail___________ 44 56 93 129 118 135 
Distribution.—Boyle’s Milk Snake is common in almost 
all parts of California except, perhaps, the deserts and the 
higher mountains. It has been recorded also from southern 
Nevada, Utah, northwestern Arizona, and northwestern 
Lower California. 
In California, it has been taken in San Diego (San Diego, 
Campo, La Mesa, Fall Brook, Twin Oaks, Santa Margarita, 
Vallecito, Poway Corners, San Dieguito Valley, Jacumba 
Hot Springs, Jarupa Mountains, La Puerta Valley), River- 
side (San Jacinto Mountains opposite Cabazon and opposite 
Banning, San Jacinto, Hemet Lake, at 4,400 feet, River- 
side, Juniper Mountains), San Bernardino (lower Santa 
Ana Canyon at 2,000 feet, Ontario, Turtle Mountains, 
Providence Mountains at 4,500 feet, Needles), Los Angeles 
(Pasadena, Gardena, Tujunga Wash east of San Fernando, 
San Gabriel Wash near Azusa, Claremont, Lankershim, 
Los Angeles, Bairdstown, Redondo Beach, mouth of San 
Gabriel River, Avalon, Catalina Island), Ventura (Piru), 
Kern (Fort Tejon, Tehachapi Mountains, Kern Valley), 
Inyo (Farrington Ranch, Laws, Lone Pine, Wild Rose 
