Gray-footed Spiny-rat vs

Proechimys poliopus compared with Sphingopyxis alaskensis

Key Differences

• Gray-footed Spiny-rat is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Gray-footed Spiny-rat
Kingdom	Animalia (Animals)	Bacteria (Bacteria)
Phylum	Chordata (Chordates)	Proteobacteria (Proteobacteria)
Class	Mammalia (Mammals)	Alphaproteobacteria (Alphaproteobacteria)
Order	Rodentia (Rodents)	Sphingomonadales (Sphingomonadales)
Family	Echimyidae	Sphingomonadaceae
Genus	Proechimys	Sphingopyxis
Species	Proechimys poliopus	Sphingopyxis alaskensis

Conservation Status

Gray-footed Spiny-rat

VU — Vulnerable

NE — Not Evaluated

Physical Characteristics

Attribute	Gray-footed Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-footed Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

Sphingopyxis alaskensis is a marine Gram-negative bacterium originally isolated from cold Alaskan coastal waters, reflecting its geographic origin. It inhabits cold, oligotrophic ocean environments and can grow at very low nutrient concentrations. This ultramicrobacterium is adapted to nutrient-poor cold marine conditions and decomposes dissolved organic matter.