Brook Floater vs Castor

Alasmidonta varicosa compared with Ricinus communis

Key Differences

• Brook Floater is Vulnerable while Castor is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Castor
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Magnoliophyta (Flowering Plants)
Class	Bivalvia (Bivalvia)	Magnoliopsida (Dicots)
Order	Unionida (Unionida)	Malpighiales (Malpighiales)
Family	Unionidae	Euphorbiaceae
Genus	Alasmidonta	Ricinus
Species	Alasmidonta varicosa	Ricinus communis

Conservation Status

Brook Floater

VU — Vulnerable

Castor

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Castor
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.

Castor

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (33 countries), Asia (26 countries), Europe (23 countries), North America (15 countries), Oceania and the Pacific (14 countries), and South America (12 countries).

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.

Castor

The Castor (Ricinus communis) is a species in the genus Ricinus. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 7 distinct biome types. Populations are also found in montane and hi

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States