Alston s Cotton Rat vs Pacific Spiny-rat

Sigmodon alstoni compared with Proechimys decumanus

Key Differences

• Alston s Cotton Rat is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Alston s Cotton Rat	Pacific Spiny-rat
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class same	Mammalia (ثدييات)	Mammalia (ثدييات)
Order same	Rodentia (قوارض)	Rodentia (قوارض)
Family	Cricetidae	Echimyidae
Genus	Sigmodon	Proechimys
Species	Sigmodon alstoni	Proechimys decumanus

Evolutionary Relationship

Alston s Cotton Rat and Pacific Spiny-rat share a common ancestor at the Order level: Rodentia. (قوارض)

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Alston s Cotton Rat	Pacific Spiny-rat
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.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.