Arizona Cotton Rat vs Delicate Pygmy Rice Rat

Sigmodon arizonae compared with Oligoryzomys delicatus

Key Differences

• Arizona Cotton Rat is Least Concern while Delicate Pygmy Rice Rat is Data Deficient.

Taxonomic Classification

Rank	Arizona Cotton Rat	Delicate Pygmy Rice Rat
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 same	Cricetidae	Cricetidae
Genus	Sigmodon	Oligoryzomys
Species	Sigmodon arizonae	Oligoryzomys delicatus

Evolutionary Relationship

Arizona Cotton Rat and Delicate Pygmy Rice Rat share a common ancestor at the Family level: Cricetidae.

Conservation Status

Arizona Cotton Rat

LC — Least Concern

Delicate Pygmy Rice Rat

DD — Data Deficient

Physical Characteristics

Attribute	Arizona Cotton Rat	Delicate Pygmy Rice Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arizona Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Delicate Pygmy Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Arizona Cotton Rat

The Arizona Cotton Rat, Sigmodon arizonae, is a species. It is currently assessed as least concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.