Amazonian Marsh Rat vs Round Ray

Holochilus sciureus compared with Rajella fyllae

Key Differences

• Amazonian Marsh Rat is Least Concern while Round Ray is Not Evaluated.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Round Ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rajiformes (Rajiformes)
Family	Cricetidae	Rajidae
Genus	Holochilus	Rajella
Species	Holochilus sciureus	Rajella fyllae

Evolutionary Relationship

Amazonian Marsh Rat and Round Ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Round Ray

NE — Not Evaluated

Physical Characteristics

Attribute	Amazonian Marsh Rat	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.

Round Ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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.