Brook Floater vs

Alasmidonta varicosa compared with Echinoderma calcicola

Key Differences

• Brook Floater is Vulnerable while is Endangered.

Taxonomic Classification

Rank	Brook Floater
Kingdom	Animalia (动物界)	Fungi (真菌界)
Phylum	Mollusca (软体动物门)	Basidiomycota (担子菌门)
Class	Bivalvia (双壳纲)	Agaricomycetes (傘菌綱)
Order	Unionida (蚌目)	Agaricales (伞菌目)
Family	Unionidae	Agaricaceae (Agarics)
Genus	Alasmidonta	Echinoderma
Species	Alasmidonta varicosa	Echinoderma calcicola

Conservation Status

Brook Floater

VU — Vulnerable

EN — Endangered

Physical Characteristics

Attribute	Brook Floater
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.

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Brazil, Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

石灰皮刺鳞伞（Echinoderma calcicola）是一种中型蘑菇，菌盖浅色，覆有深色尖刺状鳞片，菌柄亦有类似装饰，生长于欧洲的钙质草地和林缘。它被视为古老、物种丰富的钙质生境的指示物种，被列为濒危物种，受到农业集约化和石灰岩草地丧失的严重威胁。