Japanese Weasel vs

Mustela itatsi compared with Sphingopyxis granuli

Key Differences

• Japanese Weasel is Near Threatened while is Not Evaluated.

Taxonomic Classification

Rank	Japanese Weasel
Kingdom	Animalia (Animals)	Bacteria (Bacteria)
Phylum	Chordata (Chordates)	Proteobacteria (Proteobacteria)
Class	Mammalia (Mammals)	Alphaproteobacteria (Alphaproteobacteria)
Order	Carnivora (Carnivorans)	Sphingomonadales (Sphingomonadales)
Family	Mustelidae (Weasels & Otters)	Sphingomonadaceae
Genus	Mustela	Sphingopyxis
Species	Mustela itatsi	Sphingopyxis granuli

Conservation Status

Japanese Weasel

NT — Near Threatened

NE — Not Evaluated

Physical Characteristics

Attribute	Japanese 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.

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

Sphingopyxis granuli is a Gram-negative alphaproteobacterium in the family Sphingomonadaceae, characterized by its yellow-pigmented colonies and the presence of sphingolipids in its membrane—a trait shared across the family. It was isolated from granule-associated material and is aerobic, rod-shaped, and motile. Sphingopyxis species are common in soils, freshwater, and plant-associated environments.