"* Scytalus (Fischer, 1813)" . . "* Scytale (LatreilleInSonnini&Latreille, 1801)" . . . . . "Agkistrodon is a genus of venomous pit vipers found in North America from the United States south to northern Costa Rica. Three species are currently recognized, all of them polytypic and closely related. Common names include: cottonmouth, copperheads, cantils."@en . "* Agkishodon (Palisot de Beauvois, 1799)" . "Agkistrodon"@en . "* Agkistrodon (Palisot de Beauvois, 1799)" . "* Acontias (Troost, 1836)" . . . "* Toxicophis (Troost, 1836)" . . "* Tisiphone (Fitzinger, 1826)" . . "* Ancistrodon (Wagler, 1830)" . . "* Cenchrus (Link, 1807)" . . "* Cenchris (Daudin, 1803)" .