Hurler and Strecker — Amphibians and Reptiles of Arkansas. 27 



Family Viperidae. 



87. Ancistrodon contortrix Linn. Copperhead. 



Hot Springs (Combs and Hurter), Greenway (Meek), 

 Fort Smith (Pier son). 



88. Ancistrodon ptscivorus Lacepede. Cotton-mouth 



or Water Moccasin. 

 Hopedale (Hay), Fort Smith (Shumard and Pierson), 

 Hot Springs (Combs), Paragould (Hurter). 



89. SisTRURus MiLiARius Liuu. Grouud Rattlesnake. 

 Sans Bois Creek, Ark. ( Jeffers. U. S. Nat. Mus. Coll.) 



90. Crotalus horridus Linn. Timber Rattle Snake. 

 Hot Springs (Combs), Paragould (Hurter), Donald- 

 son (Meek). A specimen of the eastern diamond rattle- 

 snake {Crotalus addmenteus Beau., in the National Mu- 

 seum Collection, is labeled "Arkansas," but probably 

 through error. Crotalus horridus is the prevailing form 

 of large rattlesnake throughout Missouri, Arkansas, 

 eastern Oklahoma, and nortlieastern Texas. 



Issued May 14, 1909. 



