Broadmouth cat shark vs Common Eider

Apristurus macrostomus compared with Somateria mollissima

Key Differences

• Broadmouth cat shark is Least Concern while Common Eider is Near Threatened.

Taxonomic Classification

Rank	Broadmouth cat shark	Common Eider
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Carcharhiniformes (Ground Sharks)	Anseriformes (Anseriformes)
Family	Scyliorhinidae	Anatidae
Genus	Apristurus	Somateria
Species	Apristurus macrostomus	Somateria mollissima

Evolutionary Relationship

Broadmouth cat shark and Common Eider share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Broadmouth cat shark

LC — Least Concern

Common Eider

NT — Near Threatened

Physical Characteristics

Attribute	Broadmouth cat shark	Common Eider
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broadmouth cat shark

Habitat

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

Range

Found in Taiwan.

Common Eider

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Broadmouth cat shark

The Broadmouth Cat Shark (Apristurus macrostomus) is a species in the genus Apristurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Common Eider

Common Eider (Somateria mollissima) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.