Granular dogfish vs Napo Spiny-rat

Centroscyllium granulatum compared with Proechimys quadruplicatus

Key Differences

• Granular dogfish is Vulnerable while Napo Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Granular dogfish	Napo Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Rodentia (Rodents)
Family	Etmopteridae	Echimyidae
Genus	Centroscyllium	Proechimys
Species	Centroscyllium granulatum	Proechimys quadruplicatus

Evolutionary Relationship

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

Conservation Status

Granular dogfish

VU — Vulnerable

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Granular dogfish	Napo Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Granular dogfish

Habitat

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

Range

Found in Chile. Currently classified as Vulnerable 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.