Grey Tooth vs Merriam’s Pocket Mouse

Phellodon melaleucus compared with Perognathus merriami

Key Differences

• Grey Tooth is Endangered while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Grey Tooth	Merriam’s Pocket Mouse
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Thelephorales (Thelephorales)	Rodentia (Rodents)
Family	Thelephoraceae	Heteromyidae
Genus	Phellodon	Perognathus
Species	Phellodon melaleucus	Perognathus merriami

Conservation Status

Grey Tooth

EN — Endangered

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Grey Tooth	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Grey Tooth

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Norway, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.