Arctic lemming vs Atlantic Smooth Dogfish

Dicrostonyx torquatus compared with Mustelus canis

Key Differences

• Arctic lemming is Least Concern while Atlantic Smooth Dogfish is Near Threatened.

Taxonomic Classification

Rank	Arctic lemming	Atlantic Smooth Dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Rodentia (Rodents)	Carcharhiniformes (Ground Sharks)
Family	Cricetidae	Triakidae
Genus	Dicrostonyx	Mustelus
Species	Dicrostonyx torquatus	Mustelus canis

Evolutionary Relationship

Arctic lemming and Atlantic Smooth Dogfish share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arctic lemming

LC — Least Concern

Atlantic Smooth Dogfish

NT — Near Threatened

Physical Characteristics

Attribute	Arctic lemming	Atlantic Smooth Dogfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Atlantic Smooth Dogfish

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Found in Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Arctic lemming

The Arctic lemming (Dicrostonyx torquatus) is a species in the genus Dicrostonyx. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Atlantic Smooth Dogfish

The Atlantic Smooth Dogfish (Mustelus canis) is a species in the genus Mustelus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.