Dwarf round ray vs Heavy-browed Mouse Opossum

Urotrygon nana compared with Marmosa andersoni

Key Differences

• Dwarf round ray is Near Threatened while Heavy-browed Mouse Opossum is Data Deficient.

Taxonomic Classification

Rank	Dwarf round ray	Heavy-browed 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 andersoni

Evolutionary Relationship

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

Conservation Status

Dwarf round ray

NT — Near Threatened

Heavy-browed Mouse Opossum

DD — Data Deficient

Physical Characteristics

Attribute	Dwarf round ray	Heavy-browed Mouse Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Heavy-browed Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.