Atlantic Stream Crayfish vs Chihuahua Gray

Austropotamobius pallipes compared with Aphonopelma pallidum

Key Differences

• Atlantic Stream Crayfish is Endangered while Chihuahua Gray is Least Concern.

Taxonomic Classification

Rank	Atlantic Stream Crayfish	Chihuahua Gray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Malacostraca (Crustaceans)	Arachnida (Arachnids)
Order	Decapoda (Decapoda)	Araneae (Araneae)
Family	Astacidae	Theraphosidae
Genus	Austropotamobius	Aphonopelma
Species	Austropotamobius pallipes	Aphonopelma pallidum

Evolutionary Relationship

Atlantic Stream Crayfish and Chihuahua Gray share a common ancestor at the Phylum level: Arthropoda. (Arthropods)

Conservation Status

Atlantic Stream Crayfish

EN — Endangered

Chihuahua Gray

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Stream Crayfish	Chihuahua Gray
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.

Chihuahua Gray

Habitat

Typically found in terrestrial habitats from forests to deserts.

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.

Chihuahua Gray

The Chihuahua Gray (Aphonopelma pallidum) is a species in the genus Aphonopelma. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial habitats from forests to deserts.