Napo Spiny-rat vs Smooth nose wedgefish

Proechimys quadruplicatus compared with Rhynchobatus laevis

Key Differences

• Napo Spiny-rat is Least Concern while Smooth nose wedgefish is Critically Endangered.

Taxonomic Classification

Rank	Napo Spiny-rat	Smooth nose wedgefish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rhinopristiformes (Rhinopristiformes)
Family	Echimyidae	Rhinidae
Genus	Proechimys	Rhynchobatus
Species	Proechimys quadruplicatus	Rhynchobatus laevis

Evolutionary Relationship

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

Conservation Status

Napo Spiny-rat

LC — Least Concern

Smooth nose wedgefish

CR — Critically Endangered

Physical Characteristics

Attribute	Napo Spiny-rat	Smooth nose wedgefish
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.

Smooth nose wedgefish