Japanese Weasel vs Western Dwarf

Mustela itatsi compared with Elachista triseriatella

Key Differences

• Japanese Weasel is Near Threatened while Western Dwarf is Not Evaluated.

Taxonomic Classification

Rank	Japanese Weasel	Western Dwarf
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)	Elachistidae
Genus	Mustela	Elachista
Species	Mustela itatsi	Elachista triseriatella

Evolutionary Relationship

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

Conservation Status

Japanese Weasel

NT — Near Threatened

Western Dwarf

NE — Not Evaluated

Physical Characteristics

Attribute	Japanese Weasel	Western Dwarf
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.

Western Dwarf

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium and Denmark.