812 13. COLUBRIDZ 
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. 
184. Thamnophis ordinoides ordinoides 
(Baird & Girard) 
Pucet GarTER SNAKE 
Plate 87 
Tropidonotus ordinoides Bairp & Girarp, Proc. Acad. Nat. Sci. Phila., 
Vol. VI, 1852, p. 176 (type locality, Puget Sound). 
Eutainia leptocephala Bairp & Girarp, Cat. N. Amer. Rept., Pt. 1, 
Serp., 1853, p- 29 (type locality, Puget Sound); Grrarp, U. S. 
Explor. Exped., Herp., 1858, p. 151, pl. XIII, figs. 7-13; Lorp, 
Naturalist Vancouver Island, Vol. II, 1866, p. 306. 
Eutainia cooperi Kennicort, U. S. Pac. R. R. Surv., Vol. XII, Pt. I, 
1860, p. 296, pl. XV, fig. 1 (localities Cathapoot’l and Willopah 
Valleys). 
Thamnophis leptocephala Vax DenBurcu, Occas. Papers Cal. Acad. Sci., 
Vol. V, 1897, p. 205. 
Eutenia leptocephala Core, Report U. S. Nat. Mus., for 1898, 1900, p. 
1058. 
Eutenia sirtalis leptocephala Brown, Proc. Acad. Sci. Phila., 1903, p. 
295 (part); Dirmars, 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 Meex, Field Columbian Mus. Nat. Hist., Zool. 
Series, Vol. I, 1899, p. 235 (type locality, Olympic Mountains, 
Washington). 
