Brook Floater vs Common Goldspeck

Alasmidonta varicosa compared with Candelariella vitellina

Key Differences

Brook Floater is Vulnerable while Common Goldspeck is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Common Goldspeck
Kingdom	Animalia (動物)	Fungi (菌界)
Phylum	Mollusca (軟体動物)	Ascomycota (子嚢菌門)
Class	Bivalvia (二枚貝)	Candelariomycetes (Candelariomycetes)
Order	Unionida (イシガイ目)	Candelariales (Candelariales)
Family	Unionidae	Candelariaceae
Genus	Alasmidonta	Candelariella
Species	Alasmidonta varicosa	Candelariella vitellina

Conservation Status

Brook Floater

VU — Vulnerable

Common Goldspeck

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Common Goldspeck
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.

Common Goldspeck

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia).

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.

Common Goldspeck

<em>Candelariella vitellina</em>, commonly known as common goldspeck, is a crustose lichen belonging to the genus Candelariella within the family Candelariaceae. This species inhabits ecosystems across Europe and North America and South America, reflecting a broad geographic tolerance suited to its saxicolous lifestyle. Its known range includes populations in four European countries, the United States in North America, and Colombia in South America. The species is assessed as Least Concern on the IUCN Red List, indicating that current population trends do not suggest elevated extinction risk. Common goldspeck typically colonizes exposed rock surfaces, bark, and other firm substrates in open environments where light availability supports its photosynthetic activity. Biological traits of this species remain poorly documented in the scientific literature.