Brook Floater vs Peale’s Free-tailed Bat

Alasmidonta varicosa compared with Nyctinomops aurispinosus

Key Differences

• Brook Floater is Vulnerable while Peale’s Free-tailed Bat is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Peale’s Free-tailed Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (Mammals)
Order	Unionida (Unionida)	Chiroptera (Bats)
Family	Unionidae	Molossidae
Genus	Alasmidonta	Nyctinomops
Species	Alasmidonta varicosa	Nyctinomops aurispinosus

Evolutionary Relationship

Brook Floater and Peale’s Free-tailed Bat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Peale’s Free-tailed Bat

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Peale’s Free-tailed Bat
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.

Peale’s Free-tailed Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia 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.