Pacific Spiny-rat vs River Lamprey

Proechimys decumanus compared with Lampetra ayresii

Key Differences

• Pacific Spiny-rat is Near Threatened while River Lamprey is Least Concern.

Taxonomic Classification

Rank	Pacific Spiny-rat	River Lamprey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Petromyzonti (Petromyzonti)
Order	Rodentia (Rodents)	Petromyzontiformes (lamprey)
Family	Echimyidae	Petromyzontidae
Genus	Proechimys	Lampetra
Species	Proechimys decumanus	Lampetra ayresii

Evolutionary Relationship

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

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

River Lamprey

LC — Least Concern

Physical Characteristics

Attribute	Pacific Spiny-rat	River Lamprey
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.

River Lamprey