Atlantic Stream Crayfish vs Bridge Roller

Austropotamobius pallipes compared with Ancylis uncella

Key Differences

• Atlantic Stream Crayfish is Endangered while Bridge Roller is Least Concern.

Taxonomic Classification

Rank	Atlantic Stream Crayfish	Bridge Roller
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Malacostraca (Crustaceans)	Insecta (Insects)
Order	Decapoda (Decapoda)	Lepidoptera (Butterflies & Moths)
Family	Astacidae	Tortricidae
Genus	Austropotamobius	Ancylis
Species	Austropotamobius pallipes	Ancylis uncella

Evolutionary Relationship

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

Conservation Status

Atlantic Stream Crayfish

EN — Endangered

Bridge Roller

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Stream Crayfish	Bridge Roller
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.

Bridge Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Bridge Roller

The Bridge Roller (Ancylis uncella) is a species in the genus Ancylis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.