Brook Floater vs glossy furrow-shell

Alasmidonta varicosa compared with Abra nitida

Key Differences

• Brook Floater is Vulnerable while glossy furrow-shell is Least Concern.

Taxonomic Classification

Rank	Brook Floater	glossy furrow-shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Bivalvia (Bivalvia)	Bivalvia (Bivalvia)
Order	Unionida (Unionida)	Cardiida (Cardiida)
Family	Unionidae	Semelidae
Genus	Alasmidonta	Abra
Species	Alasmidonta varicosa	Abra nitida

Evolutionary Relationship

Brook Floater and glossy furrow-shell share a common ancestor at the Class level: Bivalvia. (Bivalvia)

Conservation Status

Brook Floater

VU — Vulnerable

glossy furrow-shell

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	glossy furrow-shell
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.

glossy furrow-shell

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.