254 Trans. Acad. Sci. of St. Louis. 



SERPENTES. Snakes. 



44. Natrix cyclopium Dumeril and Bibron. Cyclops or Green Water 



Snake. 



45. Natrix rhomhifera Hallowell. Diamond-backed Water Snake. 



Holbrook's Water Snake. 



46. Natrix fa^ciata Linn. Banded or Southern Water Snake. Mocca- 



sin. 



47. Natrix fasciata erytlirog aster Shaw. Red-bellied Water Snake. 



48. Natrix sipedon Linn. Common Water Snake. Water Moccasin. 



49. Natrix sipedon transversus Hallowell. Woodhouse's Water Snake. 



50. Natrix grahamii Baird and Girard. Graham's Water Snake. 



51. Thamnophis proxima faireyi Baird and Girard. Fairey's Ribbon 



Snake. 



52. Thamnophis radix Baird and Girard. Prairie or Racine Garter 



Snake. 



53. Thamnophis sirtalis Linn. Common Garter Snake. Striped 



Snake. 



54. Btoreria dekayi Holbrook. DeKay's Snake. DeKay's Brown 



Snake. 



55. Storeria occipitomaculata Storer. Storer's Snake. Red-bellied 



Snake. 



56. Tropidoclonium lineatum Hallowell. Lined Snake. 



57. Haldea striatula Linn. Little Brown Snake. 



58. Bascanion constrictor Linn. Blue Racer. Black Snake. 



59. Bascanion constrictor flaviventris Say. Yellow-bellied Racer. 



60. Bascanion flagellum Shaw. Coach Whip Snake, 



61. Pituophis sayi Schlegel. Bull Snake. Pine Snake. Western 



Bull Snake. 



62. Heterodon platyrhinos Latreille, Blowing Adder. Spread Head. 



Spreading Viper. 



63. Elaphe vulpinus Baird and Girard. Fox Snake. 



64. Elaphe guttatus Linn. Spotted Coluber. Spotted Racer. Corn 



Snake. Red Chicken Snake. Mouse Snake. 



65. Elaphe obsoletus Say, Black Snake, Pilot Snake, Mountain 



Black Snake. Rat Snake. 



66. Elaphe confinis Baird and Girard. Spotted Chicken Snake. Gray 



Coluber. Gray Rat Snake. 



67. Ela/phe spiloides Dumeril and Bibron. 



68. Elaphe emoryi Baird and Girard. Emory's Snake. 



69. Lampropeltis doliatus Linn. Milk Snake. House Snake. King 



Snake. 



