Hog-nosed Snakes
Heterodon
Heterodon is a genus of harmless colubrid snakes endemic to North America. They are stout with upturned snouts and are perhaps best known for their characteristic threat displays. Three species are currently recognized. Members of the genus are commonly known as hog-nosed snakes, North American hog-nosed snakes, and sometimes puff adders (though they should not be confused with the venomous African vipers of the genus Bitis).
4 branches of this genus, most-observed first · about 4 known species
Eastern Hognose Snake
speciesHeterodon platirhinos
Plains Hognose Snake
speciesHeterodon nasicus
Mexican Hognose Snake
speciesHeterodon kennerlyi
Southern Hognose Snake
speciesHeterodon simus
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
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Every page naming Heterodon in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 29923.