Bearded Tooth vs Japanese Weasel

Hericium erinaceus compared with Mustela itatsi

Key Differences

• Bearded Tooth is Critically Endangered while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Bearded Tooth	Japanese Weasel
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Russulales (Russulales)	Carnivora (Carnivorans)
Family	Hericiaceae	Mustelidae (Weasels & Otters)
Genus	Hericium	Mustela
Species	Hericium erinaceus	Mustela itatsi

Conservation Status

Bearded Tooth

CR — Critically Endangered

Japanese Weasel

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

Bearded Tooth

Habitat

Inhabits tropical and subtropical moist broadleaf forests and temperate broadleaf and mixed forests spanning the Indomalayan and Palearctic realms.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Bearded Tooth

The Bearded Tooth (Hericium erinaceus) is a species in the genus Hericium. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and temperate broadleaf and mixed forests spanning the Indomalayan and Palearctic realms.