Japanese Weasel vs Spindle Ermine

Mustela itatsi compared with Yponomeuta cagnagellus

Key Differences

• Japanese Weasel is Near Threatened while Spindle Ermine is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Spindle Ermine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Carnivora (Carnivorans)	Lepidoptera (Butterflies & Moths)
Family	Mustelidae (Weasels & Otters)	Yponomeutidae
Genus	Mustela	Yponomeuta
Species	Mustela itatsi	Yponomeuta cagnagellus

Evolutionary Relationship

Japanese Weasel and Spindle Ermine share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Japanese Weasel

NT — Near Threatened

Spindle Ermine

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Spindle Ermine
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.

Spindle Ermine

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.