Brook Floater vs spotted ray

Alasmidonta varicosa compared with Raja montagui

Key Differences

• Brook Floater is Vulnerable while spotted ray is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	spotted ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Elasmobranchii
Order	Unionida (Unionida)	Rajiformes (Rajiformes)
Family	Unionidae	Rajidae
Genus	Alasmidonta	Raja
Species	Alasmidonta varicosa	Raja montagui

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

spotted ray

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	spotted ray
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.

spotted ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.