Amazonian Marsh Rat vs Cow-nosed ray

Holochilus sciureus compared with Rhinoptera bonasus

Key Differences

• Amazonian Marsh Rat is Least Concern while Cow-nosed ray is Vulnerable.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Cow-nosed ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Myliobatiformes (Myliobatiformes)
Family	Cricetidae	Myliobatidae
Genus	Holochilus	Rhinoptera
Species	Holochilus sciureus	Rhinoptera bonasus

Evolutionary Relationship

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

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Cow-nosed ray

VU — Vulnerable

Physical Characteristics

Attribute	Amazonian Marsh Rat	Cow-nosed 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.

Cow-nosed ray

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

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

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.

Shared Countries

Both species can be found in 1 countries:

🇻🇪 Venezuela