Dwarf round ray vs Guyanan spiny rat

Urotrygon nana compared with Proechimys hoplomyoides

Key Differences

• Dwarf round ray is Near Threatened while Guyanan spiny rat is Data Deficient.

Taxonomic Classification

Rank	Dwarf round ray	Guyanan spiny rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Rodentia (Rodents)
Family	Urotrygonidae	Echimyidae
Genus	Urotrygon	Proechimys
Species	Urotrygon nana	Proechimys hoplomyoides

Evolutionary Relationship

Dwarf round ray and Guyanan spiny rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Guyanan spiny rat

DD — Data Deficient

Physical Characteristics

Attribute	Dwarf round ray	Guyanan spiny rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Guyanan spiny rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.