Brook Floater vs Elfin Saddle

Alasmidonta varicosa compared with Helvella lacunosa

Key Differences

• Brook Floater is Vulnerable while Elfin Saddle is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Elfin Saddle
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Ascomycota (Sac Fungi)
Class	Bivalvia (Bivalvia)	Pezizomycetes (Pezizomycetes)
Order	Unionida (Unionida)	Pezizales (Pezizales)
Family	Unionidae	Helvellaceae
Genus	Alasmidonta	Helvella
Species	Alasmidonta varicosa	Helvella lacunosa

Conservation Status

Brook Floater

VU — Vulnerable

Elfin Saddle

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Elfin Saddle
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.

Elfin Saddle

Habitat

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

Range

Found across 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