colusr/d.'T; 



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) 



PuGET Garter Snake 



Plate 87 



Tropidonotus ordinoides Baird & Girard, Proc. Acad. Nat. Sci. Phila., 



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

 Eutainia kplocephala Baird & Girard, Cat. N. Amer. Rept., Ft. 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, 



i860, 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. 

 Eutania leptocephala Cope, Report U. S. Nat. Mus., for 1898, 1900, p. 



1058. 

 Eutania sirta/is 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). 



