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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Trimorphodon biscutatus
western lyre snake
Chiricahua National Monument
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Common

Scientific Name with Authority:		Trimorphodon biscutatus (A. M. C. Duméril, Bibron and A. H. A. Duméril, 1854)
Park Preferred Common Name(s):		western lyre snake
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Animalia, Phylum Chordata, Subphylum Vertebrata, Order Squamata, Suborder Serpentes, Family Colubridae, Genus Trimorphodon, Species Trimorphodon biscutatus


Seasonality Tags:
Breeder


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:
NatureServe State Rank:
Evidence:		13 Observations, 3 Vouchers, 4 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Big Bend National Park	Coronado National Memorial
Fort Bowie National Historic Site	Grand Canyon National Park
Mojave National Preserve	Montezuma Castle National Monument
Organ Pipe Cactus National Monument	Saguaro National Park
Tonto National Monument	Tuzigoot National Monument
Zion National Park


Last Modified Date:	3/27/2007

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/24/2025 10:37:54 AM

NatureServe Global Rank and State Rank

NatureServe. 2017. NatureServe Web Service. Arlington, VA. U.S.A. Available http://services.natureserve.org. Accessed: 12/4/2017. Updated quarterly.

This information is provided by NatureServe (www.natureserve.org) and its network of natural heritage member programs, a leading source of information about rare and endangered species, and threatened ecosystems.


		Species Profile		Page 1 of 1		10/24/2025 10:37:54 AM