Brook Floater vs Garlic Snail

Alasmidonta varicosa compared with Oxychilus alliarius

Taxonomic Classification

Rank	Brook Floater	Garlic Snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class	Bivalvia (Bivalvia)	Gastropoda (Gastropoda)
Order	Unionida (Unionida)	Stylommatophora (Stylommatophora)
Family	Unionidae	Oxychilidae
Genus	Alasmidonta	Oxychilus
Species	Alasmidonta varicosa	Oxychilus alliarius

Evolutionary Relationship

Brook Floater and Garlic Snail share a common ancestor at the Phylum level: Mollusca. (Mollusks)

View Phylum: Mollusca

Conservation Status

Brook Floater

VU — Vulnerable

Garlic Snail

VU — Vulnerable

Physical Characteristics

Attribute	Brook Floater	Garlic Snail
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.

Garlic Snail

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 4 distinct biome types spanning the Australasia and Oceanian and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Europe (7 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Chile). Currently classified as Vulnerable 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.