!3. COLUBRID.' 



sional snake. Perhaps insects also are eaten. One male, 

 caught at Berkeley, contained a Western Racer. This is 

 the only instance I recall of a snake having been eaten by 

 a garter-snake. 



1 86. Thamnophis ordinoides elegans (Baird & Girard) 

 Mountain Garter-Snake 



Eutainia clegar.s Baird & Girard, Cat. N. Amer. Rept., Pt. I, Serp., 



1853, P- 34 (type locality, El Dorado County, California). 

 Eu'eenia elegans Yarrow & Henshaw, Ann. Rep. Chief of Engineers 



for 1878, Surv. W. looth Merid., Appendix NN, 1878, p. 116. 

 Tropidonotus trivittaus Hallowell, Proc. Acad. Nat. Sci. Phila., Vol. 



VI, 1853, p. 237 (Cosumnes River, Cal.). 

 Eutania elegans brunnea Cope, Proc. U. S. Nat. Mus., Vol. XIV, 1892, 



p. 654 (type locality, Fort Bidwell, Cal.); Cope, Report U. S. 



Nat. Mus. for 1898, 1900, p. 10.37. 

 Eutcenia elegans lineolata Cope, Proc. U. S. Nat. Mus., Vol. XIV, 1892, 



p. 655 (part), (no type); Cope, Report U. S. Nat. Mus. for 1898, 



1900, p. 1038 (part). 

 Thamnophis elegans Van Denburgh, Occas. Papers Cal. Acad. Sci., 



No. V, 1897, p. 207 (part); Grinnell, Univ. Cal. Publ. Zool., 



Vol. 5, No. I, 1908, p. 167. 

 Eutania elegans elegans Brown, Proc. Acad. Nat. Sci. Phila., 1903, 



p. 288 (part); Cope, Report J. S. Nat. Mus. for 1898, 1900, p. 



1036. 

 Thamnophis ordinoides elegans Ruthven, Bull. U. S. Nat. Mus., No. 



61, 1908, p. 138 (part); Stejnecer & Barbour, Check List N. 



Amer. Amph. Rept., 1917, p. 102 (part); Grinnell & Camp, Uni». 



Cal. Publ. Zool., Vol. 17, No. 10, 1917, p. 180 (part); Van Den- 

 burgh & Slevin, Proc. Cal. Acad. Sci., Ser. 4, Vol. VIII, No. 6, 



1918, p. 235; Van Denburgh & Slevin, Proc. Cal. Acad. Sci., 



Ser. 4, Vol. XI, 1921, pp. 29, 37. 



Description. — Head distinct from neck, flat-topped, 

 with narrow, rounded snout, and temporal regions some- 

 times swollen. Eye moderate. Rostral large, bounded 

 behind by internasal, anterior nasal, and first labial plates. 

 Plates on top of head: A pair of internasals, a pair of pre- 



