Dwarf round ray vs Guinean Arvicanthis

Urotrygon nana compared with Arvicanthis rufinus

Key Differences

• Dwarf round ray is Near Threatened while Guinean Arvicanthis is Least Concern.

Taxonomic Classification

Rank	Dwarf round ray	Guinean Arvicanthis
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	Arvicanthis
Species	Urotrygon nana	Arvicanthis rufinus

Evolutionary Relationship

Dwarf round ray and Guinean Arvicanthis share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Guinean Arvicanthis

LC — Least Concern

Physical Characteristics

Attribute	Dwarf round ray	Guinean Arvicanthis
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Guinean Arvicanthis

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.