Napo Spiny-rat vs Ray

Proechimys quadruplicatus compared with Atlantoraja castelnaui

Key Differences

• Napo Spiny-rat is Least Concern while Ray is Critically Endangered.

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	Atlantoraja
Species	Proechimys quadruplicatus	Atlantoraja castelnaui

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

CR — Critically Endangered

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