Blacktail spurdog vs Cuvier s Spiny-rat

Squalus melanurus compared with Proechimys cuvieri

Key Differences

• Blacktail spurdog is Data Deficient while Cuvier s Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Cuvier s Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Rodentia (Rodents)
Family	Squalidae	Echimyidae
Genus	Squalus	Proechimys
Species	Squalus melanurus	Proechimys cuvieri

Evolutionary Relationship

Blacktail spurdog and Cuvier s Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Cuvier s Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Cuvier s Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Cuvier s Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Ecuador and Venezuela.

Blacktail spurdog

The Blacktail spurdog (Squalus melanurus) is a species in the genus Squalus. It is currently classified as Data Deficient on the IUCN Red List.