Brook Floater vs Little Black Serotine

Alasmidonta varicosa compared with Eptesicus andinus

Key Differences

• Brook Floater is Vulnerable while Little Black Serotine is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Little Black Serotine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (Mammals)
Order	Unionida (Unionida)	Chiroptera (Bats)
Family	Unionidae	Vespertilionidae
Genus	Alasmidonta	Eptesicus
Species	Alasmidonta varicosa	Eptesicus andinus

Evolutionary Relationship

Brook Floater and Little Black Serotine share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Little Black Serotine

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Little Black Serotine
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.

Little Black Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.