Brook Floater vs rusty topsnail

Alasmidonta varicosa compared with Calliostoma conulus

Key Differences

• Brook Floater is Vulnerable while rusty topsnail is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	rusty topsnail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class	Bivalvia (Bivalvia)	Gastropoda (Gastropoda)
Order	Unionida (Unionida)	Trochida (Trochida)
Family	Unionidae	Calliostomatidae
Genus	Alasmidonta	Calliostoma
Species	Alasmidonta varicosa	Calliostoma conulus

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

rusty topsnail

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	rusty topsnail
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.

rusty topsnail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Asia (Turkey) and Europe (5 countries).

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.