Brook Floater vs Chickamauga Crayfish

Alasmidonta varicosa compared with Cambarus extraneus

Key Differences

• Brook Floater is Vulnerable while Chickamauga Crayfish is Data Deficient.

Taxonomic Classification

Rank	Brook Floater	Chickamauga Crayfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Malacostraca (Crustaceans)
Order	Unionida (Unionida)	Decapoda (Decapoda)
Family	Unionidae	Cambaridae
Genus	Alasmidonta	Cambarus
Species	Alasmidonta varicosa	Cambarus extraneus

Evolutionary Relationship

Brook Floater and Chickamauga Crayfish share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Chickamauga Crayfish

DD — Data Deficient

Physical Characteristics

Attribute	Brook Floater	Chickamauga Crayfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Chickamauga Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Norway.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

Chickamauga Crayfish

The Chickamauga Crayfish (Cambarus extraneus) is a species in the genus Cambarus. It is currently classified as Data Deficient on the IUCN Red List. Typically found in marine, freshwater, and terrestrial environments.