Brook Floater vs Central Andes Oldfield Mouse

Alasmidonta varicosa compared with Thomasomys contradictus

Key Differences

• Brook Floater is Vulnerable while Central Andes Oldfield Mouse is Data Deficient.

Taxonomic Classification

Rank	Brook Floater	Central Andes Oldfield Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (Mammals)
Order	Unionida (Unionida)	Rodentia (Rodents)
Family	Unionidae	Cricetidae
Genus	Alasmidonta	Thomasomys
Species	Alasmidonta varicosa	Thomasomys contradictus

Evolutionary Relationship

Brook Floater and Central Andes Oldfield Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Central Andes Oldfield Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Brook Floater	Central Andes Oldfield Mouse
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.

Central Andes Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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.

Central Andes Oldfield Mouse

The Central Andes Oldfield Mouse (Thomasomys contradictus) is a species in the genus Thomasomys. It is currently classified as Data Deficient on the IUCN Red List. Found in Colombia.