Brook Floater vs Shadow Dot Lichen

Alasmidonta varicosa compared with Micarea peliocarpa

Key Differences

Brook Floater is Vulnerable while Shadow Dot Lichen is Near Threatened.

Taxonomic Classification

Rank	Brook Floater	Shadow Dot Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Ascomycota (Sac Fungi)
Class	Bivalvia (Bivalvia)	Lecanoromycetes (Lecanoromycetes)
Order	Unionida (Unionida)	Lecanorales (Lecanorales)
Family	Unionidae	Byssolomataceae
Genus	Alasmidonta	Micarea
Species	Alasmidonta varicosa	Micarea peliocarpa

Conservation Status

Brook Floater

VU — Vulnerable

Shadow Dot Lichen

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater	Shadow Dot Lichen
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.

Shadow Dot Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.