Blacktail spurdog vs Gray Red-backed Vole

Squalus melanurus compared with Myodes rufocanus

Key Differences

• Blacktail spurdog is Data Deficient while Gray Red-backed Vole is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Gray Red-backed Vole
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	Myodes
Species	Squalus melanurus	Myodes rufocanus

Evolutionary Relationship

Blacktail spurdog and Gray Red-backed Vole share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Gray Red-backed Vole

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Gray Red-backed Vole
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Gray Red-backed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Norway.

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.