Northern copperhead snake

The northern copperhead snake (Agkistrodon contortrix mokasen) is a subspecies of the copperhead snake. It is found in the eastern United States.

Northern copperhead snake
Scientific classification
Unrecognized taxon (fix):	Reptilia
Order:	Squamata
Family:	Viperidae
Genus:	Agkistrodon
Species:	A. contortrix
Subspecies:	A. c. mokasen
Trinomial name
Agkistrodon contortrix mokasen Palisot de Beauvois, 1799
Synonyms
Agkistrodon mokason Palisot de Beauvois, 1799 Agkishodon mokasen Palisot de Beauvois, 1799 Cenchris mokeson Daudin, 1803 Scytale mockeson Say, 1819 Agkistrodon mokasen – Beyer, 1898 Ancistrodon mokasen – Brown, 1908 Agkistrodon mokasen mokasen – Gloyd & Conant, 1934 Agkistrodon mokeson mokeson – Gloyd & Conant, 1943 Agkistrodon mokeson – Davis & Brimley, 1944 Agkistrodon contortrix mokeson – Klauber, 1948 Agkistrodon contortrix mokasen – Klimstra, 1950 Ancistrodon contortrix mokeson – Schmidt, 1953 Agkistrodon contortrix makasen Bonn & McCarley, 1953 Ancistrodon contortrix mokasen – Petersen, 1970 Agkistrodon contortrix mokasen – Harding & Welch, 1980