650 13. COLUBRIDEZ 
white or yellow. The lower surfaces, including none, one- 
half, one, one and one-half, or two rows of scales, are white, 
yellow, rose,* orange, lake,* or coral red—brightest post- 
eriorly—more or less spotted with black at the posterior 
edges of the gastrosteges and urosteges and under the head. 
mength) tohanus = 137 166 270 Sis}s) 366 420 
Length of tail... 32 40 68 66 101 92 
Remarks.—Of seven specimens from southern Califor- 
nia six have 17 and one 15 rows of scales. All other speci- 
mens have 15 rows except a series from Carmel, Monterey 
County. From this locality we have 14 specimens, of which 
11 have 17 and three 15 rows. Specimens from more 
northern localities usually have 15 rows of scales. If this 
difference in the number of scale-rows is shown by larger 
series it will be necessary to divide this species into northern 
and southern subspecies. The northern form would then 
be known as D. amabilis amabilis (type locality, San Jose, 
California). The southern subspecies may be called Diado- 
phis amabilis modestus. 
Distribution—The Western Ring-neck or “Red- 
bellied” Snake, lives in all parts of California except the 
desert area and the hot interior valleys. It ranges north 
across Oregon, where it has been taken in the Willamette 
Valley, and west of Hood River, and at Fort Dalles, but I 
believe, has not been found in any other state. It occurs in 
northern Lower California. 
In California, it has been found in Shasta (Baird on the 
McCloud River), Butte (Chambers Ravine near Oroville), 
El Dorado, Mariposa (Mariposa, Varian, Yosemite Valley), 
Fresno (Fresno probably in mountains), Tulare (Redstone 
Park, Springville, Colony Mull, Sequoia National Park), 
*In formalin, 
