Pacific Spiny-rat vs Round Ray

Proechimys decumanus compared with Rajella fyllae

Key Differences

• Pacific Spiny-rat is Near Threatened while Round Ray is Not Evaluated.

Taxonomic Classification

Rank	Pacific 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 decumanus	Rajella fyllae

Evolutionary Relationship

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

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

Round Ray

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Round Ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.