Napo Spiny-rat vs Round Ray

Proechimys quadruplicatus compared with Rajella fyllae

Key Differences

• Napo Spiny-rat is Least Concern while Round Ray is Not Evaluated.

Taxonomic Classification

Rank	Napo Spiny-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	Echimyidae	Rajidae
Genus	Proechimys	Rajella
Species	Proechimys quadruplicatus	Rajella fyllae

Evolutionary Relationship

Napo Spiny-rat and Round Ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Napo Spiny-rat

LC — Least Concern

Round Ray

NE — Not Evaluated

Physical Characteristics

Attribute	Napo Spiny-rat	Round Ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Round Ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.