Pacific Spiny-rat vs Swell shark

Proechimys decumanus compared with Cephaloscyllium ventriosum

Key Differences

• Pacific Spiny-rat is Near Threatened while Swell shark is Least Concern.

Taxonomic Classification

Rank	Pacific Spiny-rat	Swell shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Rodentia (Rodents)	Carcharhiniformes (Ground Sharks)
Family	Echimyidae	Scyliorhinidae
Genus	Proechimys	Cephaloscyllium
Species	Proechimys decumanus	Cephaloscyllium ventriosum

Evolutionary Relationship

Pacific Spiny-rat and Swell shark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

Swell shark

LC — Least Concern

Physical Characteristics

Attribute	Pacific Spiny-rat	Swell shark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Swell shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Found in Chile.