Brook Floater vs Roughback Whipray

Alasmidonta varicosa compared with Fluvitrygon kittipongi

Key Differences

• Brook Floater is Vulnerable while Roughback Whipray is Endangered.

Taxonomic Classification

Rank	Brook Floater	Roughback Whipray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Elasmobranchii
Order	Unionida (Unionida)	Myliobatiformes (Myliobatiformes)
Family	Unionidae	Dasyatidae
Genus	Alasmidonta	Fluvitrygon
Species	Alasmidonta varicosa	Fluvitrygon kittipongi

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Roughback Whipray

EN — Endangered

Physical Characteristics

Attribute	Brook Floater	Roughback Whipray
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.

Roughback Whipray

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.