Bordered Marble vs Brook Floater

Endothenia marginana compared with Alasmidonta varicosa

Taxonomic Classification

Rank	Bordered Marble	Brook Floater
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Bivalvia (Bivalvia)
Order	Lepidoptera (Butterflies & Moths)	Unionida (Unionida)
Family	Tortricidae	Unionidae
Genus	Endothenia	Alasmidonta
Species	Endothenia marginana	Alasmidonta varicosa

Evolutionary Relationship

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

Conservation Status

Bordered Marble

VU — Vulnerable

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Bordered Marble	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bordered Marble

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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.

Bordered Marble

The Bordered Marble (Endothenia marginana) is a species in the genus Endothenia. It is currently classified as Vulnerable on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.