Dwarf round ray vs Guajira Mouse Opossum

Urotrygon nana compared with Marmosa xerophila

Key Differences

• Dwarf round ray is Near Threatened while Guajira Mouse Opossum is Vulnerable.

Taxonomic Classification

Rank	Dwarf round ray	Guajira Mouse Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Didelphimorphia (Didelphimorphia)
Family	Urotrygonidae	Didelphidae
Genus	Urotrygon	Marmosa
Species	Urotrygon nana	Marmosa xerophila

Evolutionary Relationship

Dwarf round ray and Guajira Mouse Opossum share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Guajira Mouse Opossum

VU — Vulnerable

Physical Characteristics

Attribute	Dwarf round ray	Guajira Mouse Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Guajira Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.