Arizona Cotton Rat vs Buff-bellied Fat-tailed Mouse Opossum

Sigmodon arizonae compared with Thylamys venustus

Key Differences

• Arizona Cotton Rat is Least Concern while Buff-bellied Fat-tailed Mouse Opossum is Data Deficient.

Taxonomic Classification

Rank	Arizona Cotton Rat	Buff-bellied Fat-tailed Mouse Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Didelphimorphia (Didelphimorphia)
Family	Cricetidae	Didelphidae
Genus	Sigmodon	Thylamys
Species	Sigmodon arizonae	Thylamys venustus

Evolutionary Relationship

Arizona Cotton Rat and Buff-bellied Fat-tailed Mouse Opossum share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Arizona Cotton Rat

LC — Least Concern

Buff-bellied Fat-tailed Mouse Opossum

DD — Data Deficient

Physical Characteristics

Attribute	Arizona Cotton Rat	Buff-bellied Fat-tailed Mouse Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arizona Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Buff-bellied Fat-tailed Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Buff-bellied Fat-tailed Mouse Opossum

The Buff-Bellied Fat-Tailed Mouse Opossum (Thylamys venustus) is a species in the genus Thylamys. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.