Brook Floater vs small heath

Alasmidonta varicosa compared with Coenonympha pamphilus

Key Differences

• Brook Floater is Vulnerable while small heath is Least Concern.

Taxonomic Classification

Rank	Brook Floater	small heath
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Nymphalidae (Brush-footed Butterflies)
Genus	Alasmidonta	Coenonympha
Species	Alasmidonta varicosa	Coenonympha pamphilus

Evolutionary Relationship

Brook Floater and small heath share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

small heath

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	small heath
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.

small heath

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (40 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.

small heath

small heath (Coenonympha pamphilus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.