Alston s Cotton Rat vs Merriam’s Pocket Mouse

Sigmodon alstoni compared with Perognathus merriami

Taxonomic Classification

Rank	Alston s Cotton Rat	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Cricetidae	Heteromyidae
Genus	Sigmodon	Perognathus
Species	Sigmodon alstoni	Perognathus merriami

Evolutionary Relationship

Alston s Cotton Rat and Merriam’s Pocket Mouse share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Alston s Cotton Rat	Merriam’s Pocket Mouse
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.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.