Eastern Patch-nosed Snake
Salvadora grahamiae
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassSquamata
- FamilyColubridae (Colubrid Snakes)
- GenusSalvadora (Patch-nosed Snakes)
- SpeciesSalvadora grahamiae (Eastern Patch-nosed Snake)
About the Eastern Patch-nosed Snake
Salvadora grahamiae, also known commonly as the eastern patch-nosed snake and the mountain patchnose snake, is a species of snake in the family Colubridae. The species is native to the southwestern United States and adjacent northeastern Mexico.
The specific name, grahamiae, is in honor of Colonel James Duncan Graham, United States Army Corps of Topographical Engineers. S. grahamiae is found in the US states of Arizona, New Mexico, and Texas, and in the Mexican states of Chihuahua, Coahuila, Querétaro, Tamaulipas, and Veracruz.
S. grahamiae occurs in a wide variety of habitats including forest, savanna, shrubland, grassland, and desert, at altitudes from sea level to 1,980 m (6,500 ft). S. grahamiae may attain a total length (including tail) of 47 in (120 cm). It has eight upper labials. The posterior chin shields touch or are separated by only one small scale.
S. grahamiae preys predominately upon lizards, especially those of the genus Aspidoscelis. It also eats reptile eggs, small snakes, nestling birds, and small mammals. S. grahamiae is oviparous. Eggs are laid in April–June, and... Wikipedia →
Closest Relatives at Saguaro National Park
Western Patch-nosed Snake
Salvadora hexalepis
Big Bend Patchnose Snake
Salvadora deserticola
Gopher Snake
Pituophis catenifer
Long-nosed Snake
Rhinocheilus lecontei
Coachwhip
Masticophis flagellum
Black-necked Gartersnake
Thamnophis cyrtopsis
Desert Kingsnake
Lampropeltis splendida
Desert Nightsnake
Hypsiglena chlorophaea
Sonoran Whipsnake
Masticophis bilineatus
California King Snake
Lampropeltis californiae
Banded Sand Snake
Sonora cincta
Checkered Garter Snake
Thamnophis marcianus
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guadalupe Mountains National Park | 🇺🇸 United States | |
| 2 | Big Bend National Park | 🇺🇸 United States | |
| 3 | Saguaro National Park | 🇺🇸 United States |
Quick answers
What are the chances of seeing a Eastern Patch-nosed Snake in Saguaro National Park?
Under 5% of wildlife watchers report a Eastern Patch-nosed Snake sighting in Saguaro National Park, based on 13 verified sightings from GBIF citizen-science data.
When is the best time to see Eastern Patch-nosed Snake in Saguaro National Park?
October has the highest sighting rate for Eastern Patch-nosed Snake in Saguaro National Park in our monthly data.