Brook Floater vs Multispine skate

Alasmidonta varicosa compared with Bathyraja multispinis

Key Differences

• Brook Floater is Vulnerable while Multispine skate is Near Threatened.

Taxonomic Classification

Rank	Brook Floater	Multispine skate
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Elasmobranchii
Order	Unionida (Unionida)	Rajiformes (Rajiformes)
Family	Unionidae	Arhynchobatidae
Genus	Alasmidonta	Bathyraja
Species	Alasmidonta varicosa	Bathyraja multispinis

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Multispine skate

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater	Multispine skate
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.

Multispine skate

Habitat

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

Range

Found in Chile. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.