Arctic lemming vs Bighead catshark

Dicrostonyx torquatus compared with Apristurus bucephalus

Key Differences

• Arctic lemming is Least Concern while Bighead catshark is Data Deficient.

Taxonomic Classification

Rank	Arctic lemming	Bighead catshark
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	Scyliorhinidae
Genus	Dicrostonyx	Apristurus
Species	Dicrostonyx torquatus	Apristurus bucephalus

Evolutionary Relationship

Arctic lemming and Bighead catshark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arctic lemming

LC — Least Concern

Bighead catshark

DD — Data Deficient

Physical Characteristics

Attribute	Arctic lemming	Bighead catshark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic lemming

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Bighead catshark

Habitat

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

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.

Bighead catshark

The Bighead catshark (Apristurus bucephalus) is a species in the genus Apristurus. Typically found in marine environments from coastal waters to deep ocean.