Atlantic Gray Seal vs White-shouldered Marble

Halichoerus grypus compared with Apotomis turbidana

Key Differences

• Atlantic Gray Seal is Vulnerable while White-shouldered Marble is Least Concern.

Taxonomic Classification

Rank	Atlantic Gray Seal	White-shouldered Marble
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Pinnipedia (Seals & Sea Lions)	Lepidoptera (Butterflies & Moths)
Family	Phocidae (True Seals)	Tortricidae
Genus	Halichoerus	Apotomis
Species	Halichoerus grypus	Apotomis turbidana

Evolutionary Relationship

Atlantic Gray Seal and White-shouldered Marble share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Atlantic Gray Seal

VU — Vulnerable

White-shouldered Marble

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Gray Seal	White-shouldered Marble
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Gray Seal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

White-shouldered Marble

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Atlantic Gray Seal

The Atlantic Gray Seal (Halichoerus grypus) is a species in the genus Halichoerus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden