76 STEJNEGER AND BARBOUR, 1917 



Diadophis arnyi KENNICOTT 

 Diadophis arnyi KENNICOTT 



Proc. Ac. Nat. Sci. Phila., 1859, p. 99. 

 Diadophis regalis arnyi COPE 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 745, fig. 156. 

 TYPE LOCALITY: Hyatt, Anderson County, Kansas. 

 RANGE : Ohio, Illinois, Indiana, Kansas, Iowa, Missouri, Arkansas, 

 Oklahoma, and Texas. 



Diadophis punctatus (LINNE) 

 Coluber punctatus LINNE 



Syst. Nat., Ed. 12, Vol. 1, 1766, p. 376. 

 Diadophis punctatus BAIRD and GIRARD 



Cat. N. Amer. Rept., Pt. 1, 1853, p. 112. 

 Diadophis punctatus COPE 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 751, fig. 162. 

 TYPE LOCALITY: Carolina. 



RANGE : In the east from southeastern Canada to Florida, in the 

 west reaching Michigan also found in Illinois, Ohio and Ten- 

 nessee. 



Diadophis regalis BAIRD and GIRARD 

 Diadophis regalis BAIRD and GIRARD 



Cat. N. Amer. Rept., Pt. 1, 1853, p. 115. 

 Diadophis regalis COPE 



Ann. Rep. U. S. Nat. Mus. 1898 (1900), p. 744, fig. 155. 

 TYPE LOCALITY: Sonora, Mexico. 



RANGE : Texas, New Mexico and Arizona to state of Vera Cruz, 

 Mexico. 



Heterodon (GENUS) 



LATREILLE, Hist. Nat. Rept., Vol. 4, 1802, p. 32 



TYPE: platirhinos = contortrix 



HOG-NOSE SNAKES 



Heterodon browni STEJNEGER 

 Heterodon browni STEJNEGER 



Proc. Biol. Soc. Washington, Vol. 16, 1903, p. 123. 

 TYPE LOCALITY: Lemon City, Florida. 

 RANGE: Extreme southern Florida. 



Heterodon contortrix (LINNE) l 

 PUFFING ADDER, SPREADING ADDER 

 Boa contortrix LINN 



Syst. Nat., Ed. 12, Vol. 1, 1766, p. 373. 



1 This snake for years has been called H. platyrhinus or platirhinos but this name is clearly a syn- 

 onym. Linne in the tenth edition of the Systema Naturae (p. 216) described Coluber conitrictor. This 



