Antioquian Sac-winged Bat vs Common Fat-tailed Mouse Opossum

Saccopteryx antioquensis compared with Thylamys pusillus

Key Differences

• Antioquian Sac-winged Bat is Data Deficient while Common Fat-tailed Mouse Opossum is Least Concern.

Taxonomic Classification

Rank	Antioquian Sac-winged Bat	Common Fat-tailed Mouse Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Chiroptera (Bats)	Didelphimorphia (Didelphimorphia)
Family	Emballonuridae	Didelphidae
Genus	Saccopteryx	Thylamys
Species	Saccopteryx antioquensis	Thylamys pusillus

Evolutionary Relationship

Antioquian Sac-winged Bat and Common Fat-tailed Mouse Opossum share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Antioquian Sac-winged Bat

DD — Data Deficient

Common Fat-tailed Mouse Opossum

LC — Least Concern

Physical Characteristics

Attribute	Antioquian Sac-winged Bat	Common Fat-tailed Mouse Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Antioquian Sac-winged Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Common Fat-tailed Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Antioquian Sac-winged Bat

The Antioquian Sac-winged Bat (Saccopteryx antioquensis) is a species in the genus Saccopteryx. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in diverse terrestrial and aquatic ecosystems.

Common Fat-tailed Mouse Opossum

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.