Blacktail spurdog vs Cuban dogfish

Squalus melanurus compared with Squalus cubensis

Key Differences

• Blacktail spurdog is Data Deficient while Cuban dogfish is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Cuban dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Elasmobranchii	Elasmobranchii
Order same	Squaliformes (Squaliformes)	Squaliformes (Squaliformes)
Family same	Squalidae	Squalidae
Genus same	Squalus	Squalus
Species	Squalus melanurus	Squalus cubensis

Evolutionary Relationship

Blacktail spurdog and Cuban dogfish share a common ancestor at the Genus level: Squalus.

Conservation Status

Blacktail spurdog

DD — Data Deficient

Cuban dogfish

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Cuban dogfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Cuban dogfish

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in 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.