CHECK LIST N. AMER. AMPH. REPT. 91 



TYPE locality: Unknown. 



range: Southern Illinois, through the lower Mississippi Valley 

 to the Gulf. 



Diadophis regalis regalis (Baird and Girard) 

 Diadophis regalis Baird and Girard 



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

 Diadophis regalis regalis Blanch ard 



Occ. Papers Mus. Zool. Univ. Michigan, No. 142, July 9, 1923, p. 1. 

 Diadophis regalis Cope 



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



TYPE locality: Sonora, Mexico. 



range: Southern Utah, southeastern Arizona, to central Texas 

 and to the state of Vera Cruz, Mexico. 



Diadophis regalis arizonae Blanchard 



Diadophis regalis arizonae Blanchard 



Occ. Papers Mus. Zool. Univ. Michigan, No. 142, July 9, 1923, p. 2. 



type locality: Sabino Canon, Arizona. 

 range: Central Arizona to northern Sonora. 



Heterodon (GENUS) 



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

 type: platirhinos = contortrix 



hog-nose snakes 



Heterodon browni Stejneger 



Heterodon broivni Stejneger 



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



TYPE locality: Lemon City, Florida. 

 range: Extreme southern Florida. 



Heterodon contortrix (Linne) 



PUFFING ADDER, SPREADING ADDER 



Boa contortrix Linne 



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

 Heterodon contortrix Stejneger and Barbour 



Check List N. Amer. Amph. Rept., Ed. 1, 1917, p. 76. 

 Heterodon platyrhinus Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 761, fig. 165. 



TYPE locality: Carolina. 



range: Massachusetts to Florida westward to Texas and north- 

 ward through the states of the Mississippi basin to Minnesota. 



