Dwarf round ray vs Smalleyed round stingray

Urotrygon nana compared with Urotrygon microphthalmum

Key Differences

• Dwarf round ray is Near Threatened while Smalleyed round stingray is Critically Endangered.

Taxonomic Classification

Rank	Dwarf round ray	Smalleyed round stingray
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Elasmobranchii	Elasmobranchii
Order same	Myliobatiformes (อันดับปลากระเบน)	Myliobatiformes (อันดับปลากระเบน)
Family same	Urotrygonidae	Urotrygonidae
Genus same	Urotrygon	Urotrygon
Species	Urotrygon nana	Urotrygon microphthalmum

Evolutionary Relationship

Dwarf round ray and Smalleyed round stingray share a common ancestor at the Genus level: Urotrygon.

Conservation Status

Dwarf round ray

NT — Near Threatened

Smalleyed round stingray

CR — Critically Endangered

Physical Characteristics

Attribute	Dwarf round ray	Smalleyed round stingray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—