Hamlyn's bull-ray vs Napo Spiny-rat

Myliobatis hamlyni compared with Proechimys quadruplicatus

Key Differences

• Hamlyn's bull-ray is Near Threatened while Napo Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Hamlyn's bull-ray	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	Myliobatidae	Echimyidae
Genus	Myliobatis	Proechimys
Species	Myliobatis hamlyni	Proechimys quadruplicatus

Evolutionary Relationship

Hamlyn's bull-ray and Napo Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hamlyn's bull-ray

NT — Near Threatened

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Hamlyn's bull-ray	Napo Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hamlyn's bull-ray

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.