Brook Floater vs Marbled Bell

Alasmidonta varicosa compared with Eucosma campoliliana

Key Differences

• Brook Floater is Vulnerable while Marbled Bell is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Marbled Bell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Tortricidae
Genus	Alasmidonta	Eucosma
Species	Alasmidonta varicosa	Eucosma campoliliana

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Marbled Bell

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Marbled Bell
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.

Marbled Bell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.