Narrowtail stingray vs Pacific Spiny-rat

Pastinachus gracilicaudus compared with Proechimys decumanus

Key Differences

• Narrowtail stingray is Endangered while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Narrowtail stingray	Pacific Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Rodentia (Rodents)
Family	Dasyatidae	Echimyidae
Genus	Pastinachus	Proechimys
Species	Pastinachus gracilicaudus	Proechimys decumanus

Evolutionary Relationship

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

Conservation Status

Narrowtail stingray

EN — Endangered

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Narrowtail stingray	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Narrowtail stingray

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.