Brook Floater vs Smoky Crottle

Alasmidonta varicosa compared with Parmelia omphalodes

Key Differences

Brook Floater is Vulnerable while Smoky Crottle is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Smoky Crottle
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Ascomycota (Sac Fungi)
Class	Bivalvia (Bivalvia)	Lecanoromycetes (Lecanoromycetes)
Order	Unionida (Unionida)	Lecanorales (Lecanorales)
Family	Unionidae	Parmeliaceae
Genus	Alasmidonta	Parmelia
Species	Alasmidonta varicosa	Parmelia omphalodes

Conservation Status

Brook Floater

VU — Vulnerable

Smoky Crottle

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Smoky Crottle
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.

Smoky Crottle

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, 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.