Agkistrodon

Agkistrodon
A cottonmouth snake (Agkistrodon piscivorus), showing the white inner mouth it received its name for.
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: Animalia : Chordata : Reptilia : Squamata : Viperidae : Agkistrodon
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A. bilineatus A. contortrix A. piscivorus

Agkistrodon (from Greek ancistron, meaning fishhook) is a genus of snakes of the subfamily Crotalinae. As of 1999, the genus Agkistrodon only includes New World species. For the Old World pit vipers previously assigned to this genus, see Gloydius.

Species

• Agkistrodon bilineatus — Cantil (primarily Mexico)
  • Agkistrodon bilineatus bilineatus — Cantil (Mexico, Guatemala, El Salvador)
  • Agkistrodon bilineatus russeolus — Yucatean Cantil (Yucatán peninsula Mexico)
  • Agkistrodon bilineatus howardgloydi — Castellana (Honduras, Nicaragua, Costa Rica)
  • Agkistrodon bilineatus taylori — Taylor's Cantil (Northeastern Mexico)
• Agkistrodon contortrix — American copperhead (southeastern United States)
  • Agkistrodon contortrix contortrix — Southern Copperhead
  • Agkistrodon contortrix laticinctus — Broad-banded Copperhead
  • Agkistrodon contortrix mokasen — Northern Copperhead
  • Agkistrodon contortrix phaeogaster — Osage Copperhead
  • Agkistrodon contortrix pictigaster — Trans-Pecos Copperhead
• Agkistrodon piscivorus — Cottonmouth, a.k.a. Water Moccasin (southeastern United States)
  • Agkistrodon piscivorus piscivorus — Eastern Cottonmouth
  • Agkistrodon piscivorus conanti — Florida Cottonmouth
  • Agkistrodon piscivorus leucostoma — Western Cottonmouth