Brook Floater vs Greenish Mottled-Disk Lichen

Alasmidonta varicosa compared with Trapeliopsis viridescens

Key Differences

Brook Floater is Vulnerable while Greenish Mottled-Disk Lichen is Critically Endangered.

Taxonomic Classification

Rank	Brook Floater	Greenish Mottled-Disk Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Ascomycota (Sac Fungi)
Class	Bivalvia (Bivalvia)	Lecanoromycetes (Lecanoromycetes)
Order	Unionida (Unionida)	Baeomycetales (Baeomycetales)
Family	Unionidae	Trapeliaceae
Genus	Alasmidonta	Trapeliopsis
Species	Alasmidonta varicosa	Trapeliopsis viridescens

Conservation Status

Brook Floater

VU — Vulnerable

Greenish Mottled-Disk Lichen

CR — Critically Endangered

Physical Characteristics

Attribute	Brook Floater	Greenish Mottled-Disk 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.

Greenish Mottled-Disk Lichen

Habitat

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

Range

Distributed across Norway, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.