Brook Floater vs Octagonal-tail worm

Alasmidonta varicosa compared with Dendrobaena octaedra

Key Differences

• Brook Floater is Vulnerable while Octagonal-tail worm is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Octagonal-tail worm
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Mollusca (Weichtiere)	Annelida (Ringelwürmer)
Class	Bivalvia (Muscheln)	Clitellata (Gürtelwürmer)
Order	Unionida (Unionida)	Crassiclitellata (Crassiclitellata)
Family	Unionidae	Lumbricidae
Genus	Alasmidonta	Dendrobaena
Species	Alasmidonta varicosa	Dendrobaena octaedra

Evolutionary Relationship

Brook Floater and Octagonal-tail worm share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Brook Floater

VU — Vulnerable

Octagonal-tail worm

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Octagonal-tail worm
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.

Octagonal-tail worm

Habitat

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

Range

Widely distributed across Asia (Georgia), Europe (5 countries), North America (Canada, United States), and South America (Chile, Colombia).

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