13. COLUBRID/E 



When disturbed, they swam boldly out into open water or 

 sought the bottom and hid themselves under the rocks. 

 Though not in the true sense of the word water snakes, the 

 various Eut(eni<p are all thus quite aquatic in their habits.* 



183. Thamnophis eques (Reuss) 

 White-bellied Garter Snake 



Coluber eques Reuss, Mus. Senckenberg. Abli., Vol. I, 1834, p. 152, 

 pi. 8, fig. 2 (type locality, Mexico). 



Eutainia dorsalis Baird & Girard, Cat. N. Anier. Rept., Pt. i, Serpents, 

 1853, p. 31 (type locality, Rio Grande, Texas). 



Eutania dorsalis Cope, Bull. U. S. Nat. Mus., No. i, 1875, p. 41; Cope, 

 Proc. U. S. Nat. Mus., Vol. XIV, 1892, p. 663. 



Eutania ornala Yarrow, Rept. U. S. Expl. Surv. W. looth Merid., 

 Vol. V, 1875, pp. 550, 553; Yarrow, Bull. U. S. Nat. Mus., No. 

 24, 1883, p. 122 (part). 



Eutcriiia cyrtopsis Kennicott, Proc. Acad. Nat. Sci. Phila., i860, p. 

 3,^3 (type localities, Rinconada, Coahuila, Mexico, Durango, 

 Gila River); Cope, Proc. Acad. Nat. Sci. Phila., 1866, p. 306; 

 Cope, Rept. U. S. Expl. Surv. W. looth Merid., Vol. V, 1875, 

 p. 546; Cope, Bull. U. S. Nat. Mus., No. i, 1875, p. 41; Cope, 

 Bull. U. S. Nat. Mus., No. 17, 1880, p. 23; Cragin, Bull. Wash- 

 burn Laborat., Vol. I, 1884, p. 8; Cope, Bull. U. S. Nat. Mus., 

 No. 32, 1887, p. 73; Cope, Proc. U. S. Nat. Mus., Vol. XIV, 1892, 

 p. 656; Cope, Report U. S. Nat. Mus., for 1898, 1900, p. 1049; 

 Bailey, N. Amer. Fauna, No. 25, 1905, pp. 35, 48. 



Thamnophis cyrtopsis var. cyclides Cope, Proc. Acad. Nat. Sci. Phila., 

 1 861, p. 299 (type locality, "Cape St. Lucas," very improbable). 



Tropidonotus collaris Jan, ."^rch. Zool. Anat. Phys., Vol. Ill, 1865, p, 

 209; Jan, Iconographia degli Ofid., Vol. II, 25, 1867, pi. V, fig. 2. 



Eutcenia cyrtopsis ocellata Cope, Bull. U. S. Nat. Mus., No. 17, 1880. 

 p. 22 (type locality, Helodes, Texas); Cope, Proc. U. S. Nat. 

 Mus., Vol. XIV, 1892, p. 657. 



Eutania pulchrilatus Cope, Proc. Am. Philos. See, 1885, p. 174 (type 

 locality, "uncertain but probably Guanajuato," Mexico); 

 Cope, Bull. U. S. Nat. Mus., No. 32, 1887, p. 73; Cope, Report 

 U. S. Nat. Mus. for 1898, 1900, p. 1062. 



•Yarrow and Henshaw, Ann. Rep. Chief of Engineers, Surv. W. looth Merid., Append. 



NN, 1878, p. 117. 



