Japanese Weasel vs Long-tailed Weasel

Mustela itatsi compared with Mustela frenata

Key Differences

• Japanese Weasel is Near Threatened while Long-tailed Weasel is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Long-tailed Weasel
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order same	Carnivora (สัตว์กินเนื้อ)	Carnivora (สัตว์กินเนื้อ)
Family same	Mustelidae (Weasels & Otters)	Mustelidae (Weasels & Otters)
Genus same	Mustela	Mustela
Species	Mustela itatsi	Mustela frenata

Evolutionary Relationship

Japanese Weasel and Long-tailed Weasel share a common ancestor at the Genus level: Mustela.

Conservation Status

Japanese Weasel

NT — Near Threatened

Long-tailed Weasel

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Long-tailed Weasel
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.

Long-tailed Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, United States, and Venezuela.