Black Laceweaver vs Brook Floater

Amaurobius ferox compared with Alasmidonta varicosa

Key Differences

• Black Laceweaver is Least Concern while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Black Laceweaver	Brook Floater
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Arachnida (Arachnids)	Bivalvia (Bivalvia)
Order	Araneae (Araneae)	Unionida (Unionida)
Family	Amaurobiidae	Unionidae
Genus	Amaurobius	Alasmidonta
Species	Amaurobius ferox	Alasmidonta varicosa

Evolutionary Relationship

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

Conservation Status

Black Laceweaver

LC — Least Concern

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Black Laceweaver	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Laceweaver

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Belgium, Canada, Denmark, Sweden, and United States.

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.

Black Laceweaver

The Black Laceweaver (Amaurobius ferox) is a species in the genus Amaurobius. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial habitats from forests to deserts.

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