Brook Floater vs Molgula

Alasmidonta varicosa compared with Molgula manhattensis

Key Differences

• Brook Floater is Vulnerable while Molgula is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Molgula
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Ascidiacea (Ascidiacea)
Order	Unionida (Unionida)	Stolidobranchia (Stolidobranchia)
Family	Unionidae	Molgulidae
Genus	Alasmidonta	Molgula
Species	Alasmidonta varicosa	Molgula manhattensis

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Molgula

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Molgula
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.

Molgula

Habitat

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

Range

Widely distributed across Asia (China, Japan, South Korea), Europe (13 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina).

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