Brook Floater vs North American least shrew

Alasmidonta varicosa compared with Cryptotis parva

Key Differences

• Brook Floater is Vulnerable while North American least shrew is Least Concern.

Taxonomic Classification

Rank	Brook Floater	North American least shrew
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Mollusca (软体动物门)	Chordata (脊索动物门)
Class	Bivalvia (双壳纲)	Mammalia (哺乳動物)
Order	Unionida (蚌目)	Soricomorpha (鼩形目)
Family	Unionidae	Soricidae
Genus	Alasmidonta	Cryptotis
Species	Alasmidonta varicosa	Cryptotis parva

Evolutionary Relationship

Brook Floater and North American least shrew share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Brook Floater

VU — Vulnerable

North American least shrew

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	North American least 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.

North American least 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.