hooknose snakes
Gyalopion
Gyalopion is a genus of small nonvenomous colubrid snakes. Species in the genus Gyalopion are commonly referred to as hooknose snakes, and are native to the southwestern United States and Mexico.
2 branches of this genus, most-observed first · about 2 known species
Chihuahuan Hook-nosed Snake
speciesGyalopion canum
Thornscrub Hook-nosed Snake
speciesGyalopion quadrangulare
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Gyalopion 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 29981.