Dwarf black stingray vs Napo Spiny-rat

Hemitrygon parvonigra compared with Proechimys quadruplicatus

Key Differences

• Dwarf black stingray is Data Deficient while Napo Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Dwarf black stingray	Napo 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	Hemitrygon	Proechimys
Species	Hemitrygon parvonigra	Proechimys quadruplicatus

Evolutionary Relationship

Dwarf black stingray and Napo Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf black stingray

DD — Data Deficient

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Dwarf black stingray	Napo Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf black stingray

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.