Brook Floater vs Raie molle

Alasmidonta varicosa compared with Malacoraja spinacidermis

Key Differences

• Brook Floater is Vulnerable while Raie molle is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Raie molle
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Mollusca (mollusques)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Elasmobranchii
Order	Unionida (Unionoida)	Rajiformes (Rajiformes)
Family	Unionidae	Rajidae
Genus	Alasmidonta	Malacoraja
Species	Alasmidonta varicosa	Malacoraja spinacidermis

Evolutionary Relationship

Brook Floater and Raie molle share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

Brook Floater

VU — Vulnerable

Raie molle

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Raie molle
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.

Raie molle

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.