40. THAMNOPHIS 855 
Distribution—The range of this snake apparently ex- 
tends over most of the Mexican plateau region and north 
into southern Arizona and New Mexico. In Arizona, 
authentic specimens have been taken near Tucson, Pima 
County, and Hereford, Lewis Springs and Fairbank, Cochise 
County. The species has been recorded also from Yuma, 
and Fort Whipple, but these records need confirmation. In 
New Mexico it has been taken at Duck Creek. 
Remarks.—Ruthven has shown that specimens from the 
southern part of the Mexican plateau exhibit a decided tend- 
ency toward a decrease in the number of scale-rows, uro- 
steges, etc. Notwithstanding this he regards them all as 
belonging to the same species as Arizonan specimens. This 
opinion is followed here, as may be seen by reference to the 
synonymy, but I feel that it may have to be revised later 
when more material is at hand. 
193. Thamnophis angustirostris (Kennicott) 
BrROWN-SPOTTED GARTER-SNAKE 
Eutenta angustirostris Kennicotr, Proc. Acad. Nat. Sci. Phila., 1860, 
Pp. 332 (type locality, Parras, Coahuila, Mexico). 
Chilopoma rufipunctatum Cope, in Yarrow, Rept. U. S. Expl. Surv. 
W. tooth Merid., Vol. V, 1875, p. 544 (type locality, Southern 
Arizona). 
Atomarchus multimaculatus Corr, Amer. Nat., 1883, p. 1300 (type 
locality, San Francisco River, New Mexico, near Arizona 
boundary.) 
Stypocemus rufopunctatus Core, Proc. Amer. Philos. Soc. 1885, p. 387. 
Eutenia multimaculata Core, Proc. Amer. Philos. Soc., 1885, p. 284; 
Cope, Proc. U.S. Nat. Mus., Vol. XIV, 1892, p. 665; Cope, Report 
U.S. Nat. Mus. for 1898, 1900, p. 1087; Brown, Proc. Acad. Nat. 
Sci. Phila., 1901, p. 31. 
Tropidonotus multimaculatus BouLencer, Cat. Snakes Brit. Mus., Vol. 
I, 1893, p. 214. 
Tropidonotus rufopunctatus BouLtencer, Cat. Snakes Brit. Mus., Vol. 
I, 1893, p. 214. 
