Dwarf round ray vs Gray-bellied Pencil-tailed Tree Mouse

Urotrygon nana compared with Chiropodomys muroides

Key Differences

• Dwarf round ray is Near Threatened while Gray-bellied Pencil-tailed Tree Mouse is Data Deficient.

Taxonomic Classification

Rank	Dwarf round ray	Gray-bellied Pencil-tailed Tree Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Rodentia (Rodents)
Family	Urotrygonidae	Muridae (Mice & Rats)
Genus	Urotrygon	Chiropodomys
Species	Urotrygon nana	Chiropodomys muroides

Evolutionary Relationship

Dwarf round ray and Gray-bellied Pencil-tailed Tree Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Gray-bellied Pencil-tailed Tree Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Dwarf round ray	Gray-bellied Pencil-tailed Tree Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Gray-bellied Pencil-tailed Tree Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.