Polynesian rat vs Stone Crayfish

Rattus exulans compared with Austropotamobius torrentium

Key Differences

• Polynesian rat is Least Concern while Stone Crayfish is Data Deficient.

Taxonomic Classification

Rank	Polynesian rat	Stone Crayfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Arthropoda (artrópodos)
Class	Mammalia (mamíferos)	Malacostraca (Crustaceans)
Order	Rodentia (Rodents)	Decapoda (Decapoda)
Family	Muridae (Mice & Rats)	Astacidae
Genus	Rattus	Austropotamobius
Species	Rattus exulans	Austropotamobius torrentium

Evolutionary Relationship

Polynesian rat and Stone Crayfish share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Polynesian rat

LC — Least Concern

Stone Crayfish

DD — Data Deficient

Physical Characteristics

Attribute	Polynesian rat	Stone Crayfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

Stone Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.