Japanese Weasel vs Striped Ermel

Mustela itatsi compared with Ethmia pusiella

Key Differences

• Japanese Weasel is Near Threatened while Striped Ermel is Critically Endangered.

Taxonomic Classification

Rank	Japanese Weasel	Striped Ermel
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)	Ethmiidae
Genus	Mustela	Ethmia
Species	Mustela itatsi	Ethmia pusiella

Evolutionary Relationship

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

Conservation Status

Japanese Weasel

NT — Near Threatened

Striped Ermel

CR — Critically Endangered

Physical Characteristics

Attribute	Japanese Weasel	Striped Ermel
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.

Striped Ermel

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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