Brook Floater vs Prickled ray

Alasmidonta varicosa compared with Malacoraja spinacidermis

Key Differences

• Brook Floater is Vulnerable while Prickled ray is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Prickled 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	Malacoraja
Species	Alasmidonta varicosa	Malacoraja spinacidermis

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Prickled ray

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Prickled 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.

Prickled ray

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.