812 13. COLUBRIDX 



In Sonora, it has been collected at Guaymas and in 

 Guadalupe Canyon. 



Remarks. Specimens from Mexico and Central Amer- 

 ica seem to differ from those from Arizona and New Mex- 

 ico in the frequent reduction in the number of supralabials 

 to seven. Since our material is all from Arizona, we are 

 unable to form an opinion as to whether the snakes from 

 these distant localities are really identical in other respects. 



1 84. Thamnophis ordinoides ordinoides 



(Baird & Girard) 



PUCET GARTER SNAKE 



Plate 87 



Tropidonotus ordinoides BAIRD & GIRARD, Proc. Acad. Nat. Sci. Phila., 

 Vol. VI, 1852, p. 176 (type locality, Puget Sound). 



Eutainia leptocephala BAIRD & GIRARD, Cat. N. Amer. Rept., Pt. I, 

 Serp., 1853, p. 29 (type locality, Puget Sound); GIRARD, U. S. 

 Explor. Exped., Herp., 1858, p. 151, pi. XIII, figs. 7-13; LORD, 

 Naturalist Vancouver Island, Vol. II, 1866, p. 306. 



Eutainia cooperi KENNICOTT, U. S. Pac. R. R. Surv., Vol. XII, Pt. II, 

 1860, p. 296, pi. XV, fig. i (localities Cathapoot'l and Willopah 

 Valleys). 



Thamnophis leptocephala VAN DENBURGH, Occas. Papers Cal. Acad. Sci., 

 Vol. V, 1897, p. 205. 



Eutitnia leptocephala COPE, Report U. S. Nat. Mus., for 1898, 1900, p. 

 1058. 



Eutania sirtalis leptocephala BROWN, Proc. Acad. Sci. Phila., 1903, p. 

 295 (part); DITMARS, Reptile Book, 1907, p. 239 (part). 



Thamnophis leptocephalus olympia MEEK, Field Columbian Mus. Nat. 

 Hist., Zool. Series, Vol. I, 1899, p. 235 (type locality, Olympic 

 Mountains, Washington). 



Thamnophis rubristriata MEEK, Field Columbian Mus. Nat. Hist., Zool. 

 Series, Vol. I, 1899, p. 235 (type locality, Olympic Mountains, 

 Washington). 



