Dwarf round ray vs Large Short-tailed Rat

Urotrygon nana compared with Brachyuromys ramirohitra

Key Differences

• Dwarf round ray is Near Threatened while Large Short-tailed Rat is Least Concern.

Taxonomic Classification

Rank	Dwarf round ray	Large Short-tailed Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Rodentia (Rodents)
Family	Urotrygonidae	Nesomyidae
Genus	Urotrygon	Brachyuromys
Species	Urotrygon nana	Brachyuromys ramirohitra

Evolutionary Relationship

Dwarf round ray and Large Short-tailed Rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Large Short-tailed Rat

LC — Least Concern

Physical Characteristics

Attribute	Dwarf round ray	Large Short-tailed Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Large Short-tailed Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.