Atlantic Stream Crayfish vs Big Free-tailed Bat

Austropotamobius pallipes compared with Nyctinomops macrotis

Key Differences

• Atlantic Stream Crayfish is Endangered while Big Free-tailed Bat is Least Concern.

Taxonomic Classification

Rank	Atlantic Stream Crayfish	Big Free-tailed Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Malacostraca (Crustaceans)	Mammalia (Mammals)
Order	Decapoda (Decapoda)	Chiroptera (Bats)
Family	Astacidae	Molossidae
Genus	Austropotamobius	Nyctinomops
Species	Austropotamobius pallipes	Nyctinomops macrotis

Evolutionary Relationship

Atlantic Stream Crayfish and Big Free-tailed Bat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Atlantic Stream Crayfish

EN — Endangered

Big Free-tailed Bat

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Stream Crayfish	Big Free-tailed Bat
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.

Big Free-tailed Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.

Big Free-tailed Bat

The Big Free-tailed Bat (Nyctinomops macrotis) is a species in the genus Nyctinomops. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.