Brook Floater vs Hoppe's screw moss

Alasmidonta varicosa compared with Tortula hoppeana

Key Differences

• Brook Floater is Vulnerable while Hoppe's screw moss is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Hoppe's screw moss
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Bryophyta
Class	Bivalvia (Bivalvia)	Bryopsida (Bryopsida)
Order	Unionida (Unionida)	Pottiales (Pottiales)
Family	Unionidae	Pottiaceae
Genus	Alasmidonta	Tortula
Species	Alasmidonta varicosa	Tortula hoppeana

Conservation Status

Brook Floater

VU — Vulnerable

Hoppe's screw moss

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Hoppe's screw moss
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.

Hoppe's screw moss

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.