Brook Floater vs Cow-nosed ray

Alasmidonta varicosa compared with Rhinoptera bonasus

Taxonomic Classification

Rank	Brook Floater	Cow-nosed ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Elasmobranchii
Order	Unionida (Unionida)	Myliobatiformes (Myliobatiformes)
Family	Unionidae	Myliobatidae
Genus	Alasmidonta	Rhinoptera
Species	Alasmidonta varicosa	Rhinoptera bonasus

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Cow-nosed ray

VU — Vulnerable

Physical Characteristics

Attribute	Brook Floater	Cow-nosed 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.

Cow-nosed ray

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.