Atlantic Stream Crayfish vs Pacific Spiny-rat

Austropotamobius pallipes compared with Proechimys decumanus

Key Differences

• Atlantic Stream Crayfish is Endangered while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Atlantic Stream Crayfish	Pacific Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Malacostraca (Crustaceans)	Mammalia (Mammals)
Order	Decapoda (Decapoda)	Rodentia (Rodents)
Family	Astacidae	Echimyidae
Genus	Austropotamobius	Proechimys
Species	Austropotamobius pallipes	Proechimys decumanus

Evolutionary Relationship

Atlantic Stream Crayfish and Pacific Spiny-rat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Atlantic Stream Crayfish

EN — Endangered

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Atlantic Stream Crayfish	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Stream Crayfish

Habitat

Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.

Range

Distributed across Ireland and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Atlantic Stream Crayfish

The Atlantic Stream Crayfish (Austropotamobius pallipes) is a species in the genus Austropotamobius. It is currently classified as Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.