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Agkistrodon_contortrix Tham khảoLiên quan
Agkistrodon contortrix Agkistrodon piscivorus Agkistrodon bilineatus Agkistrodon taylori Agis IV Agdistis heydeni Agdistis arabica Agdistis adactyla Agdistis AkismetTài liệu tham khảo
WikiPedia: Agkistrodon_contortrix http://www.animalcontrolsolutions.com/animals/copp... http://www.gherp.com/ http://www.gherp.com/gallery/new/Copperhead.jpg http://www.snakesandspiders.com/copperhead-snake-f... http://reptile-database.reptarium.cz/ http://reptile-database.reptarium.cz/species.php?g... http://reptile-database.reptarium.cz/species?genus... http://www.itis.gov/servlet/SingleRpt/SingleRpt?se... http://www.copperheadsnake.net http://pages.cthome.net/rwinkler/