vs Brook Floater

Biddulphia rhombus compared with Alasmidonta varicosa

Key Differences

• is Not Evaluated while Brook Floater is Vulnerable.

Taxonomic Classification

Rank		Brook Floater
Kingdom	Chromista (Chromista)	Animalia (Animals)
Phylum	Ochrophyta (Ochrophyta)	Mollusca (Mollusks)
Class	Bacillariophyceae (Bacillariophyceae)	Bivalvia (Bivalvia)
Order	Biddulphiales (Biddulphiales)	Unionida (Unionida)
Family	Biddulphiaceae	Unionidae
Genus	Biddulphia	Alasmidonta
Species	Biddulphia rhombus	Alasmidonta varicosa

Conservation Status

NE — Not Evaluated

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute		Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

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

Range

Distributed across Denmark, Sweden, and Taiwan.

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.

Biddulphia rhombus is a centric marine diatom with a distinctly bipolar, rhomboid to broadly lanceolate valve shape bearing prominent horn-like elevations. It inhabits coastal planktonic and benthic environments in temperate to warm seas worldwide. This photosynthetic diatom contributes to marine primary production in neritic coastal waters.

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.