678 EEPTILES — COLUBRID^. 



j. Postabdominal soutella bifid ; dorsal rows of scales not exceed 21. b. 



fc. With a yellow ring round the neck Diadophis. 



Jc. Without cervical ring. I. 



I. Dorsal scales in 15 rows. .... . . Liopbltis. 



I. Dorsal scales in 17 or more rows Bascanium. 



m. Dorsal scales in 19 rows. n. 



m. Dorsal rows of scales not exceeding 17. o. 



n. Prefrontals one , . Fakancia. 



It. Prefrontals two Abastoe. 



o. Postorbitals two ; dorsal scales in 15 or 17 rows. . . . Virginia. 



0. Postorbitals one ; dorsal scales In 13 rows. . . . Cabfhophis. 



Genus EUT.ffiNIA. Baird and Girard. 



Body varying from long and slender to strong and moderately thick ; cephalic plates 

 noimal ; anteorbitals one ; postorbitals usually three ; loral present ; nasals two ; pre- 

 frontals two ; labials and in&amaxillaries moderately large ; dorsal scales strongly 

 carinated, in 19-21 rows; gastrosteges, 140-170 ; post-abdominal scntella entire ; nrosteges, 

 50-120, all bifid ; ground color dark, with a vertebral and two lateral stripes ; habits 

 terrestrial ; species ovoviviparons. 

 Lateral stripe on the third and fourth rows of scales ; body slender ; tail nearly one- 

 third of total length. «. 

 Lateral stripe on second and third rows of scales ; body stouter ; tail one-fourth of 



total length E. sirtalis. 



a. Urosteges less than 110 E. proxima. 



a. Urosteges 115 or more E. saurita. 



EuTiENIA PEOXIMA Say. 



Say's Garter Snake. 



Coluber jn-oximua, Sat, Harlan. 



Iro<pidonotus ^proxitnus, Boie. 



Eutcenia proxima, Baird and Girard, Cope, Jordan. 



General color above black; vertebral bami varying from yellow to brown; lateral 

 stripes green or yellowish to white ; occipital plates with a yellow spot about the cen- 

 ter of the commissural line ; abdomen and under parts varying from dingy white to oliva- 

 ceous or green ; vertical plate elongated, pentagonal, the posterior sides much the shorter, 

 the lateral edges longest andarcnate to receive the projecting part of snperciliaries ; nasals 

 two ; rostral broad, but not very high ; upper labials eight, lower nine or ten ; temporal 

 region covered with large plates ; inframaxillaries reaching to the eighth lower labial ; 

 loral rhomboida] ; eye over the fourth and fifth upper labial ; dorsal rows of scales nine- 

 teen, all carinated ; vertebral band covering one and two half rows of scaled ; lateral 

 stripes on the third and fburth rows from the abdomen ; color below the lateral stripes 

 somewhat lighter than above ; body stouter than Eutwnia saurita; tail about two sevenths 

 the total length ; gastrosteges, 170-180 ; urosteges, 80-85. Length, 2| feet ; head, 1 

 inch ; tail, 9 inches ; transverse diameter of head 7^ linesj; of neck 5J lines ; circomfer- 

 ence of body 2i inches. 



Habitat, " California," Montana, and Arkansas, to Wisconsin, Ohio, North Carolina, 

 Louisiana, Texas, and Mexico, 



Bare in the State. 



