264 Illinois State Lahoratonj of Natural History. 



slender, with more or less evident yellow or greenish longitu- 

 dinal stripes. Often ovoviparous. 



Lateral stripes on the third and fourth rows of dorsal scales. 

 Dorsal scales in 19 rows. The dark color of the back uni- 

 form. Body slender E. saurita. 



Dorsal scales in 21 rows, with more or less distinct black 

 spots between the stripes. Stouter than E. saurita. 



E. RADIX. 



Lateral stripes on the second and third rows of scales. 



Dorsal scales in 19 rows E. sirtalis. 



Dorsal scales in 21 rows E. vagrans. 



Eutainia saurita, Linn. Garter Snake, Riband Snake. 

 Var. saurita. 



Coluber sdnrlta, Linn., Syst. Nat., ed. 12, 176B, I., p. 385. 

 Eutaiida miirita, Bd. and Gir., Cat. N. A. Rept., Pt. I., 1853, p. 24. 

 Ei(t(vni(j saurita, Davis and Rice, Bull. 111. State Lab. Nat. Hist., 



I., No. 5, 1883, p. 38; Bull. Chicago Acad. Sci., 1883. 

 Tropidoiiotiis saurita. S. Garman, Mem. Mus. Comp. ZO(U., 1883, 



pp. 23, 137, pi. 3, fig. 2. 



Var. faireyi. 



Eutaiiii<ifairet/i,Bd. and Glr., Cat. N. A. Rept., Pt. I., 1853, p. 25. 

 Eiitaiiia /((ireyi, Davis and Rice. Bull. 111. State Lab. Nat. Hist., 



I., No. 5, 1883, p. 39; Bull. Chicago Acad. Sci., 1883. 

 7'r<>j>iduii.otu.s savrita, var. fairet/i, S. Garman, Mem. Mus. 



Comp. Zool., 1883, p. 137. 



Var. proximus. 



Co/nljcr /)ro.fiiiiiis,Siiy, Long's Exped. to Rocky Mts., 1823, I., 



p. 187. 

 Eutainia jiro.ci/iai. Bd. and Gir., Cat. N. A.Rept., Pt. I., 1853, p. 25. 

 Eutduia pro-riina, Davis and Rice, Bull. 111. State Lab. Nat. 



Hist., I., No. 5. 1883, p. 39. 

 Tr(>j)i(l<>ia)fus saurita. var. pru.viiuus, S. Garman, Mem, Mus. 



Comp. Zool., 1883. pp. 24, 137. 



Body slender. Head distinctly marked ofP by the more 

 slender neck. Tail long, tapering. All the dorsal scales cari- 

 nated. Frontal elongate, hexagonal, sides generally incurved. 

 One anteorbital. Three postorbitals. Seven or eight suprala- 

 bials; sixth and seventh largest. Ten infralabials; hfth and 



