Brook Floater vs Grey Pine Ermel

Alasmidonta varicosa compared with Ocnerostoma friesei

Key Differences

• Brook Floater is Vulnerable while Grey Pine Ermel is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Grey Pine Ermel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Yponomeutidae
Genus	Alasmidonta	Ocnerostoma
Species	Alasmidonta varicosa	Ocnerostoma friesei

Evolutionary Relationship

Brook Floater and Grey Pine Ermel share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Grey Pine Ermel

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Grey Pine Ermel
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.

Grey Pine Ermel

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (8 countries).

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.