Blacktail spurdog vs Grizzled Colilargo

Squalus melanurus compared with Oligoryzomys griseolus

Key Differences

• Blacktail spurdog is Data Deficient while Grizzled Colilargo is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Grizzled Colilargo
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Squaliformes (Squaliformes)	Rodentia (Rodents)
Family	Squalidae	Cricetidae
Genus	Squalus	Oligoryzomys
Species	Squalus melanurus	Oligoryzomys griseolus

Evolutionary Relationship

Blacktail spurdog and Grizzled Colilargo share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Grizzled Colilargo

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Grizzled Colilargo
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Grizzled Colilargo

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia 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.