212 CALIFORNIA ACADEMY OF SCIENCES. 



70. Thamnophis vagrans biscutata (Cope). COPE'S 

 GARTER SNAKE. 



Eutcenia biscutata, COPE, Proc. Ac. Nat. Sci. Phila., 1883, p. 21 (type 



locality Klamath Lake, Oregon.*) 

 ? Eutcenia Hemhawi, YARROW, Proc. U. S. Nat. Mus., VI, 1883, p. 



152 (type locality Ft. Walla Walla, Wash.) 



Description. Differs from T. vagrans in having usually 

 two or three (rarely one) preoculars, scales sometimes 

 in twenty-three rows, and superior labials not infre- 

 quently seven. 



The coloration usually is not different from that of 

 typical T. vagrans. Some specimens, however, are so 

 dark as to conceal the dorsal spots, and one is black 

 everywhere excepting the chin, throat, and a few bits 

 of skin between the scales, no lines being visible. Some 

 dark specimens resemble, in coloration, certain examples 

 of T. elegans. 



Length to anus 375 455 500 503 550 620 



Length of tail 132 135 155 175 175 175 



Distribution. This snake was first described from 

 specimens collected at Klamath Lake, southeastern Ore- 

 gon. I have examined specimens from that locality and 

 from Vancouver Island, besides more than thirty from 

 King County, Washington. Garter snakes are almost 

 incredibly numerous in the Klamath region. That all 

 belong to this subspecies seems improbable. 



71. Thamnophis hammondii (Kennicott). CALIFORNIA 

 GARTER SNAKE. 



Eulainia hammondii, KENN., Proc. Ac. Nat. Sci. Phila., 1860, p. 332 



(type localities San Diego, Fort Tejon, Cal.h COPE, U. S. 



Explor. Surv. W. 100th Mer., V, 1875, pp. 545, 549. 

 Eutcenia elegans couchii, COPE, Proc. U. S. Nat. Mus., XIV, 1891, p. 



656. * 



Tropidonotus ordinatus var. hammondii, BOUL., Cat. Snakes Brit. 



Mus., I, 1893, p. 210. 

 Thamnophis hammondii, STEJN., N. A. Fauna, No. 7, 1893, p. 212. 



*8ee Cope, Proc. U. 8. Nat. Mus., xiv, 1891, p. 651. 



