Japanese Weasel vs Spruce Tooth

Mustela itatsi compared with Phellodon violascens

Key Differences

• Japanese Weasel is Near Threatened while Spruce Tooth is Endangered.

Taxonomic Classification

Rank	Japanese Weasel	Spruce Tooth
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Carnivora (Carnivorans)	Thelephorales (Thelephorales)
Family	Mustelidae (Weasels & Otters)	Thelephoraceae
Genus	Mustela	Phellodon
Species	Mustela itatsi	Phellodon violascens

Conservation Status

Japanese Weasel

NT — Near Threatened

Spruce Tooth

EN — Endangered

Physical Characteristics

Attribute	Japanese Weasel	Spruce Tooth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Spruce Tooth

Habitat

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

Range

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