43 



Tropidonotus sipedon, Linn., subspecies erytJirogaster, Shaw ; Baird and 

 Girard, Cat., p. 40. Austroriparian region, except Texas ; Michigan 

 and Kansas. 



Tropidonotus taxispilotus, Holhroobj Baird 'and Girard, Cat., p. 43, 

 North Carolina to Georgia. 



Tropidonotus rhomMfer, Hallowell ; Baird and Girard, Cat., p. 43. Loui- 

 siana to Illinois and Michigan. 



Tropidonotus eyclopium, Dum. et Bibron ; Cope, Proc. Acad., 1861, p. 299, 



Florida. 



Helicops, Wagler. 



Helicops allenii, Garman," Proc. Bost. Soc. Nat. Hist., 1874, p. 92, 

 rioridan district. 



Heterodon, Beauv. 



Meter odon platyrhinus, JjntreiWe ', Baird and Girard, Cat., p. 51. Entire 



Austroriparian and Eastern regions. 

 Meterodonplatyrhinus, Latr., subspecies atmodes, Baird and Girard, Cat., 



p. 57. North Carolina to Georgia. 

 Seterodon simus, Linn., subspecies simus, Baird and Girard, Cat., p. 59. 



Austroriparian region, excepting Texas. 

 Seterodon simus, Linn., subspecies nasicus, Baird and Girard, Cat., p. 61. 



Sonoran and Central regions and Texas. 



BOIDAE. 



Charina, Gray. 



Charina bottae, Blainv., Nouvelles Annales Mus. Hist. Nat., iii, 1834, 57. 



Lower Californian region. 

 Charina plumhea, Baird and Girard, Cat., p. 139. Pacific region ; 



? Nevada. 



LICHANURIDAE. 



LiCHANURA, Cope. 



Lichanura trivirgata, Cope, Proc. Acad. Phila., 1861, p. 304. Lower 

 California. 



Lichanura myriolepis, Cope, Proc. Acad. Phila., 1868, p. 2. Lower Cali- 

 fornia. 



Lichanura roseifusca, Cope, Proc. Acad. Phila., 1868, p. 2. Lower Cali- 

 fornia. 



