Boreal Thorius vs Lesser Pencil-tailed Tree Mouse

Thorius boreas compared with Chiropodomys pusillus

Key Differences

• Boreal Thorius is Endangered while Lesser Pencil-tailed Tree Mouse is Data Deficient.

Taxonomic Classification

Rank	Boreal Thorius	Lesser Pencil-tailed Tree Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Caudata (Caudata)	Rodentia (Rodents)
Family	Plethodontidae	Muridae (Mice & Rats)
Genus	Thorius	Chiropodomys
Species	Thorius boreas	Chiropodomys pusillus

Evolutionary Relationship

Boreal Thorius and Lesser Pencil-tailed Tree Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Boreal Thorius

EN — Endangered

Lesser Pencil-tailed Tree Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Boreal Thorius	Lesser Pencil-tailed Tree Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Boreal Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Lesser Pencil-tailed Tree Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Boreal Thorius

The Boreal Thorius (Thorius boreas) is a species in the genus Thorius. It is currently classified as Endangered on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.