Amazonian Marsh Rat vs Dwarf round ray

Holochilus sciureus compared with Urotrygon nana

Key Differences

• Amazonian Marsh Rat is Least Concern while Dwarf round ray is Near Threatened.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Dwarf round ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Myliobatiformes (Myliobatiformes)
Family	Cricetidae	Urotrygonidae
Genus	Holochilus	Urotrygon
Species	Holochilus sciureus	Urotrygon nana

Evolutionary Relationship

Amazonian Marsh Rat and Dwarf round ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Dwarf round ray

NT — Near Threatened

Physical Characteristics

Attribute	Amazonian Marsh Rat	Dwarf round ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonian Marsh Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Dwarf round ray

Amazonian Marsh Rat

The Amazonian Marsh Rat (Holochilus sciureus) is a species in the genus Holochilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.