Species profile
Sonoran Lyresnake
Trimorphodon lambda
Identify Sonoran Lyresnake (Trimorphodon lambda) from a photo — free, unlimited, no sign-up — with the CatchRules iPhone app. Plus current fishing rules across 1 jurisdiction.
At a glance
Sonoran Lyresnake (Trimorphodon lambda) is an IUCN Least Concern reptile with specific harvest rules tracked in 1 of 66 jurisdictions covered by CatchRules.
Confirmed by 639 research-grade iNaturalist observations, with Arizona, Utah, and New Mexico the top jurisdictions by observation count.
Notable details
- Named for the lyre-shaped marking on top of its head.
- Vertical pupils — rare among non-venomous snakes — aid vision during nocturnal hunts.
- Rear-fanged and mildly venomous, it subdues lizards and small mammals with venom.
- Nocturnal and secretive, it shelters in rock crevices in Sonoran Desert canyons.
- Its slender body lets it navigate tight crevices hunting sleeping lizards at night.
Where Sonoran Lyresnake are seen
Jurisdictions with rules for Sonoran Lyresnake
Background
Trimorphodon lambda, the Sonoran lyre snake, is a species of snake of the family Colubridae.
Background excerpt adapted from Wikipedia's Sonoran Lyresnake article (CC BY-SA). Visit Wikipedia for the full entry.
Other reptiles on CatchRules
Frequently asked questions
What is Sonoran Lyresnake?
Sonoran Lyresnake (Trimorphodon lambda) is an IUCN Least Concern reptile with specific harvest rules tracked in 1 of 66 jurisdictions covered by CatchRules.
What is the scientific name for Sonoran Lyresnake?
Sonoran Lyresnake is Trimorphodon lambda.
Is Sonoran Lyresnake regulated for fishing?
Yes — Sonoran Lyresnake has fishing regulations in 1 U.S. state and/or Canadian province tracked by CatchRules. See the "Jurisdictions with rules" section above for the binding-source links.
How can I identify Sonoran Lyresnake?
Take a photo with the free CatchRules iPhone app — on-device identification recognizes Sonoran Lyresnake along with ~1,500 other species. No sign-up, unlimited use.
Photo credit: iNaturalist / Wikipedia. Identification reference only — verify regulations with the issuing wildlife agency before retaining a catch.