Brook Floater vs Grey Inkcap

Alasmidonta varicosa compared with Coprinopsis cinerea

Key Differences

• Brook Floater is Vulnerable while Grey Inkcap is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Grey Inkcap
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Basidiomycota (Club Fungi)
Class	Bivalvia (Bivalvia)	Agaricomycetes (Mushrooms)
Order	Unionida (Unionida)	Agaricales (Gilled Mushrooms)
Family	Unionidae	Psathyrellaceae
Genus	Alasmidonta	Coprinopsis
Species	Alasmidonta varicosa	Coprinopsis cinerea

Conservation Status

Brook Floater

VU — Vulnerable

Grey Inkcap

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Grey Inkcap
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.

Grey Inkcap

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and North America (United States).

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