Amazonian Marsh Rat vs Simons’s Mouse Opossum

Holochilus sciureus compared with Marmosa simonsi

Key Differences

• Amazonian Marsh Rat is Least Concern while Simons’s Mouse Opossum is Not Evaluated.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Simons’s 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	Holochilus	Marmosa
Species	Holochilus sciureus	Marmosa simonsi

Evolutionary Relationship

Amazonian Marsh Rat and Simons’s Mouse Opossum share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Simons’s Mouse Opossum

NE — Not Evaluated

Physical Characteristics

Attribute	Amazonian Marsh Rat	Simons’s Mouse Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonian Marsh Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Simons’s Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

Amazonian Marsh Rat

The Amazonian Marsh Rat (Holochilus sciureus) is a species in the genus Holochilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.