Napo Spiny-rat vs Ray

Proechimys quadruplicatus compared with Sympterygia bonapartii

Key Differences

• Napo Spiny-rat is Least Concern while Ray is Near Threatened.

Taxonomic Classification

Rank	Napo Spiny-rat	Ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rajiformes (Rajiformes)
Family	Echimyidae	Arhynchobatidae
Genus	Proechimys	Sympterygia
Species	Proechimys quadruplicatus	Sympterygia bonapartii

Evolutionary Relationship

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

Conservation Status

Napo Spiny-rat

LC — Least Concern

Ray

NT — Near Threatened

Physical Characteristics

Attribute	Napo Spiny-rat	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.

Ray

Habitat

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

Range

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