Brook Floater vs Spineless Stream Toad

Alasmidonta varicosa compared with Bufo aspinius

Key Differences

• Brook Floater is Vulnerable while Spineless Stream Toad is Endangered.

Taxonomic Classification

Rank	Brook Floater	Spineless Stream Toad
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Amphibia (Amphibians)
Order	Unionida (Unionida)	Anura (Frogs & Toads)
Family	Unionidae	Bufonidae
Genus	Alasmidonta	Bufo
Species	Alasmidonta varicosa	Bufo aspinius

Evolutionary Relationship

Brook Floater and Spineless Stream Toad share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Spineless Stream Toad

EN — Endangered

Physical Characteristics

Attribute	Brook Floater	Spineless Stream Toad
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.

Spineless Stream Toad

Habitat

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

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.