Pacific Spiny-rat vs Smalltooth stingray

Proechimys decumanus compared with Hypanus rudis

Key Differences

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

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

Smalltooth stingray

CR — Critically Endangered

Physical Characteristics

Attribute	Pacific Spiny-rat	Smalltooth stingray
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.

Smalltooth stingray