Brook Floater vs Crescent Dart

Alasmidonta varicosa compared with Agrotis trux

Key Differences

• Brook Floater is Vulnerable while Crescent Dart is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Crescent Dart
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Noctuidae
Genus	Alasmidonta	Agrotis
Species	Alasmidonta varicosa	Agrotis trux

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Crescent Dart

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Crescent Dart
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.

Crescent Dart

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Cabo Verde, and Portugal.

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.