Petit opossum-souris vs Cercopithèque mone

Thylamys pusillus compared with Cercopithecus mona

Key Differences

• Petit opossum-souris is Least Concern while Cercopithèque mone is Near Threatened.

Taxonomic Classification

Rank	Petit opossum-souris	Cercopithèque mone
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order	Didelphimorphia (Didelphimorphia)	Primates (Primates)
Family	Didelphidae	Cercopithecidae (Old World Monkeys)
Genus	Thylamys	Cercopithecus
Species	Thylamys pusillus	Cercopithecus mona

Evolutionary Relationship

Petit opossum-souris and Cercopithèque mone share a common ancestor at the Class level: Mammalia. (mammifères)

Conservation Status

Petit opossum-souris

LC — Least Concern

Cercopithèque mone

NT — Near Threatened

Physical Characteristics

Attribute	Petit opossum-souris	Cercopithèque mone
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Petit opossum-souris

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Cercopithèque mone

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Neotropic biogeographic realm.

Range

Distributed across Grenada and Sao Tome and Principe. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Petit opossum-souris

The Common Fat-tailed Mouse Opossum (<em>Thylamys pusillus</em>) is a small marsupial belonging to the genus Thylamys within the family Didelphidae. Like other members of its genus, this species typically stores fat in its tail, which becomes swollen during periods of food abundance and is metabolised during leaner times, a physiological adaptation that provides energy reserves. <em>Thylamys pusillus</em> is generally found in diverse terrestrial and aquatic ecosystems, often in dry woodlands, scrublands, and grassland habitats of South America. The species is assessed as Least Concern on the IUCN Red List, indicating it is not currently considered at risk of extinction. Detailed geographic range data are not available in the current record, but members of this genus are typically distributed across parts of Argentina, Bolivia, Paraguay, and Uruguay. Biological traits including average lifespan, body dimensions, and specific dietary composition remain poorly documented in the scientific literature, though Thylamys species are generally considered omnivorous, often consuming insects, small vertebrates, and plant material.