Brook Floater vs Oriental House Rat

Alasmidonta varicosa compared with Rattus tanezumi

Key Differences

• Brook Floater is Vulnerable while Oriental House Rat is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Oriental House Rat
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Mollusca (Weichtiere)	Chordata (Chordatiere)
Class	Bivalvia (Muscheln)	Mammalia (Säugetiere)
Order	Unionida (Unionida)	Rodentia (Nagetiere)
Family	Unionidae	Muridae (Mice & Rats)
Genus	Alasmidonta	Rattus
Species	Alasmidonta varicosa	Rattus tanezumi

Evolutionary Relationship

Brook Floater and Oriental House Rat share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Brook Floater

VU — Vulnerable

Oriental House Rat

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Oriental House Rat
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.

Oriental House Rat

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Oceanian biogeographic realm.

Range

Widely distributed across Africa (Eswatini, Lesotho, South Africa), Asia (Philippines, Taiwan), and Oceania and the Pacific (Kiribati).

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.