Brook Floater vs Spotted Thorius

Alasmidonta varicosa compared with Thorius spilogaster

Key Differences

• Brook Floater is Vulnerable while Spotted Thorius is Critically Endangered.

Taxonomic Classification

Rank	Brook Floater	Spotted Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Amphibia (Amphibians)
Order	Unionida (Unionida)	Caudata (Caudata)
Family	Unionidae	Plethodontidae
Genus	Alasmidonta	Thorius
Species	Alasmidonta varicosa	Thorius spilogaster

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Spotted Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Brook Floater	Spotted Thorius
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.

Spotted Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.