Dwarf round ray vs Hudson s Thomaomys

Urotrygon nana compared with Thomasomys hudsoni

Key Differences

• Dwarf round ray is Near Threatened while Hudson s Thomaomys is Vulnerable.

Taxonomic Classification

Rank	Dwarf round ray	Hudson s Thomaomys
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	Thomasomys
Species	Urotrygon nana	Thomasomys hudsoni

Evolutionary Relationship

Dwarf round ray and Hudson s Thomaomys share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

Hudson s Thomaomys

VU — Vulnerable

Physical Characteristics

Attribute	Dwarf round ray	Hudson s Thomaomys
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

Hudson s Thomaomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.