Brook Floater vs Gorgeted Puffleg

Alasmidonta varicosa compared with Eriocnemis isabellae

Key Differences

• Brook Floater is Vulnerable while Gorgeted Puffleg is Critically Endangered.

Taxonomic Classification

Rank	Brook Floater	Gorgeted Puffleg
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Aves (Birds)
Order	Unionida (Unionida)	Apodiformes (Apodiformes)
Family	Unionidae	Trochilidae
Genus	Alasmidonta	Eriocnemis
Species	Alasmidonta varicosa	Eriocnemis isabellae

Evolutionary Relationship

Brook Floater and Gorgeted Puffleg share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Gorgeted Puffleg

CR — Critically Endangered

Physical Characteristics

Attribute	Brook Floater	Gorgeted Puffleg
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.

Gorgeted Puffleg

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and montane grasslands and shrublands, among 4 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia and Norway. Currently classified as Critically 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.