Brook Floater vs Flat-skulled Shrew

Alasmidonta varicosa compared with Sorex roboratus

Key Differences

• Brook Floater is Vulnerable while Flat-skulled Shrew is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Flat-skulled Shrew
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (Mammals)
Order	Unionida (Unionida)	Soricomorpha (Soricomorpha)
Family	Unionidae	Soricidae
Genus	Alasmidonta	Sorex
Species	Alasmidonta varicosa	Sorex roboratus

Evolutionary Relationship

Brook Floater and Flat-skulled Shrew share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Flat-skulled Shrew

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Flat-skulled Shrew
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.

Flat-skulled Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.