Brook Floater vs Spring Blackclock

Alasmidonta varicosa compared with Pterostichus vernalis

Key Differences

• Brook Floater is Vulnerable while Spring Blackclock is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Spring Blackclock
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Arthropoda (Arthropods)
Class	Bivalvia (Bivalvia)	Insecta (Insects)
Order	Unionida (Unionida)	Coleoptera (Beetles)
Family	Unionidae	Carabidae
Genus	Alasmidonta	Pterostichus
Species	Alasmidonta varicosa	Pterostichus vernalis

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

Spring Blackclock

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Spring Blackclock
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.

Spring Blackclock

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (6 countries) and North America (Canada, United States).

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