Bog Shadow vs Brook Floater

Arrhenia umbratilis compared with Alasmidonta varicosa

Key Differences

• Bog Shadow is Not Evaluated while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Bog Shadow	Brook Floater
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Mollusca (Mollusks)
Class	Agaricomycetes (Mushrooms)	Bivalvia (Bivalvia)
Order	Agaricales (Gilled Mushrooms)	Unionida (Unionida)
Family	Hygrophoraceae	Unionidae
Genus	Arrhenia	Alasmidonta
Species	Arrhenia umbratilis	Alasmidonta varicosa

Conservation Status

Bog Shadow

NE — Not Evaluated

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Bog Shadow	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bog Shadow

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Norway and Sweden.

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.

Bog Shadow

The Bog Shadow (Arrhenia umbratilis) is a species in the genus Arrhenia. Distributed across 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.