Dwarf round ray vs Long-nosed Scolomys

Urotrygon nana compared with Scolomys ucayalensis

Key Differences

• Dwarf round ray is Near Threatened while Long-nosed Scolomys is Least Concern.

Taxonomic Classification

Rank	Dwarf round ray	Long-nosed Scolomys
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	Scolomys
Species	Urotrygon nana	Scolomys ucayalensis

Evolutionary Relationship

Dwarf round ray and Long-nosed Scolomys share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Long-nosed Scolomys

LC — Least Concern

Physical Characteristics

Attribute	Dwarf round ray	Long-nosed Scolomys
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Long-nosed Scolomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.