Brook Floater vs Polychaete

Alasmidonta varicosa compared with Pileolaria militaris

Key Differences

• Brook Floater is Vulnerable while Polychaete is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Polychaete
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Annelida (Segmented Worms)
Class	Bivalvia (Bivalvia)	Polychaeta (Polychaeta)
Order	Unionida (Unionida)	Sabellida (Sabellida)
Family	Unionidae	Serpulidae
Genus	Alasmidonta	Pileolaria
Species	Alasmidonta varicosa	Pileolaria militaris

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Polychaete

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Polychaete
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.

Polychaete

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (6 countries) and North America (United States).

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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States