Viperidae Agkistrodon contortrix 1801 4 SMITH-NODATA Unknown UNDETERMINED COUNTRY Ordered by Prof. Smith Unknown date Viperidae Agkistrodon contortrix 1871 2 OUCHTER North America USA N. America Unknown date Ouchterlony JA Viperidae Agkistrodon contortrix 3301 1 ORQ-1963APR15 North America USA Louisiana La Place 15 Apr 1963 Viperidae Agkistrodon contortrix 6228 1 GELIN-2008 N/A N/A Captivity 2008 Gelin, P Viperidae Agkistrodon contortrix 8928 1 OUCHTER-1872 North America USA 1872 Ouchterlony JA Viperidae Agkistrodon contortrix 39091 1 MEC-780804-05 North America USA Missouri Boone County c. 11 miles southeast of Columbia, Ashland Wildlife Research Area, 'Site 05' 4 Aug 1978 Clawson, ME