Alston s Cotton Rat vs Eastern Pygmy Marmoset

Sigmodon alstoni compared with Cebuella niveiventris

Key Differences

• Alston s Cotton Rat is Least Concern while Eastern Pygmy Marmoset is Vulnerable.

Taxonomic Classification

Rank	Alston s Cotton Rat	Eastern Pygmy Marmoset
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Rodentia (啮齿目)	Primates (灵长目)
Family	Cricetidae	Callitrichidae
Genus	Sigmodon	Cebuella
Species	Sigmodon alstoni	Cebuella niveiventris

Evolutionary Relationship

Alston s Cotton Rat and Eastern Pygmy Marmoset share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Eastern Pygmy Marmoset

VU — Vulnerable

Physical Characteristics

Attribute	Alston s Cotton Rat	Eastern Pygmy Marmoset
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alston s Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Eastern Pygmy Marmoset

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.

Alston s Cotton Rat

The Alston s Cotton Rat (Sigmodon alstoni) is a species in the genus Sigmodon. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems. Distributed across Colombia and Venezuela.