Brook Floater vs Zartspinne

Alasmidonta varicosa compared with Anyphaena accentuata

Key Differences

• Brook Floater is Vulnerable while Zartspinne is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Zartspinne
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Mollusca (Weichtiere)	Arthropoda (Gliederfüßer)
Class	Bivalvia (Muscheln)	Arachnida (Spinnentiere)
Order	Unionida (Unionida)	Araneae (Webspinnen)
Family	Unionidae	Anyphaenidae
Genus	Alasmidonta	Anyphaena
Species	Alasmidonta varicosa	Anyphaena accentuata

Evolutionary Relationship

Brook Floater and Zartspinne share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Brook Floater

VU — Vulnerable

Zartspinne

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Zartspinne
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.

Zartspinne

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden.

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.

Zartspinne

The Buzzing Spider (Anyphaena accentuata) is a species in the genus Anyphaena. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial habitats from forests to deserts.