Japanese Weasel vs small rivulet

Mustela itatsi compared with Perizoma alchemillata

Key Differences

• Japanese Weasel is Near Threatened while small rivulet is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	small rivulet
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)	Geometridae
Genus	Mustela	Perizoma
Species	Mustela itatsi	Perizoma alchemillata

Evolutionary Relationship

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

Conservation Status

Japanese Weasel

NT — Near Threatened

small rivulet

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	small rivulet
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.

small rivulet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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