Blacktail spurdog vs Dusky melanomys

Squalus melanurus compared with Melanomys caliginosus

Key Differences

• Blacktail spurdog is Data Deficient while Dusky melanomys is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Dusky melanomys
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	Melanomys
Species	Squalus melanurus	Melanomys caliginosus

Evolutionary Relationship

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

Conservation Status

Blacktail spurdog

DD — Data Deficient

Dusky melanomys

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Dusky melanomys
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Dusky melanomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, 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.