Amazonian Marsh Rat vs Spinetail ray

Holochilus sciureus compared with Bathyraja spinicauda

Key Differences

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

Taxonomic Classification

Rank	Amazonian Marsh Rat	Spinetail ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rajiformes (Rajiformes)
Family	Cricetidae	Arhynchobatidae
Genus	Holochilus	Bathyraja
Species	Holochilus sciureus	Bathyraja spinicauda

Evolutionary Relationship

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

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Spinetail ray

NT — Near Threatened

Physical Characteristics

Attribute	Amazonian Marsh Rat	Spinetail 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.

Spinetail ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.