Maiden ray vs Napo Spiny-rat

Amblyraja radiata compared with Proechimys quadruplicatus

Key Differences

• Maiden ray is Endangered while Napo Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Maiden ray	Napo Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Rajiformes (Rajiformes)	Rodentia (Rodents)
Family	Rajidae	Echimyidae
Genus	Amblyraja	Proechimys
Species	Amblyraja radiata	Proechimys quadruplicatus

Evolutionary Relationship

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

Conservation Status

Maiden ray

EN — Endangered

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Maiden ray	Napo Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Maiden ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.