Brook Floater vs Marbled Minor

Alasmidonta varicosa compared with Oligia strigilis

Key Differences

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

Taxonomic Classification

Rank	Brook Floater	Marbled Minor
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Noctuidae
Genus	Alasmidonta	Oligia
Species	Alasmidonta varicosa	Oligia strigilis

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Marbled Minor

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Marbled Minor
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 Minor

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States