Dwarf round ray vs Gray-bellied Rice Rat

Urotrygon nana compared with Nephelomys moerex

Key Differences

• Dwarf round ray is Near Threatened while Gray-bellied Rice Rat is Extinct.

Taxonomic Classification

Rank	Dwarf round ray	Gray-bellied Rice Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Rodentia (Rodents)
Family	Urotrygonidae	Cricetidae
Genus	Urotrygon	Nephelomys
Species	Urotrygon nana	Nephelomys moerex

Evolutionary Relationship

Dwarf round ray and Gray-bellied Rice Rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Gray-bellied Rice Rat

EX — Extinct

Physical Characteristics

Attribute	Dwarf round ray	Gray-bellied Rice Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Gray-bellied Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.