Ecuadorian Cotton Rat vs Lesser Short-tailed Rat

Sigmodon inopinatus compared with Brachyuromys betsileoensis

Key Differences

• Ecuadorian Cotton Rat is Vulnerable while Lesser Short-tailed Rat is Least Concern.

Taxonomic Classification

Rank	Ecuadorian Cotton Rat	Lesser Short-tailed Rat
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Cricetidae	Nesomyidae
Genus	Sigmodon	Brachyuromys
Species	Sigmodon inopinatus	Brachyuromys betsileoensis

Evolutionary Relationship

Ecuadorian Cotton Rat and Lesser Short-tailed Rat share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Ecuadorian Cotton Rat

VU — Vulnerable

Lesser Short-tailed Rat

LC — Least Concern

Physical Characteristics

Attribute	Ecuadorian Cotton Rat	Lesser Short-tailed Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ecuadorian Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Lesser Short-tailed Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.