Brook Floater vs Scarce Widow

Alasmidonta varicosa compared with Dingana fraterna

Key Differences

• Brook Floater is Vulnerable while Scarce Widow is Critically Endangered.

Taxonomic Classification

Rank	Brook Floater	Scarce Widow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (moluscos)	Arthropoda (artrópodos)
Class	Bivalvia (Bivalvia)	Insecta (insecto)
Order	Unionida (Unionida)	Lepidoptera (Butterflies & Moths)
Family	Unionidae	Nymphalidae (Brush-footed Butterflies)
Genus	Alasmidonta	Dingana
Species	Alasmidonta varicosa	Dingana fraterna

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Scarce Widow

CR — Critically Endangered

Physical Characteristics

Attribute	Brook Floater	Scarce Widow
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.

Scarce Widow

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

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.