foca gris vs common bubble snail

Halichoerus grypus compared with Akera bullata

Key Differences

• foca gris is Vulnerable while common bubble snail is Least Concern.

Taxonomic Classification

Rank	foca gris	common bubble snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Mollusca (moluscos)
Class	Mammalia (mamíferos)	Gastropoda (gastrópodos)
Order	Pinnipedia (Seals & Sea Lions)	Aplysiida (Aplysiida)
Family	Phocidae (True Seals)	Akeridae
Genus	Halichoerus	Akera
Species	Halichoerus grypus	Akera bullata

Evolutionary Relationship

foca gris and common bubble snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

foca gris

VU — Vulnerable

common bubble snail

LC — Least Concern

Physical Characteristics

Attribute	foca gris	common bubble snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

foca gris

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.

common bubble snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

foca gris

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.

common bubble snail

The common bubble snail (<em>Akera bullata</em>) is a marine gastropod mollusc found in the coastal waters of Denmark, Norway, Portugal, and Sweden. This species typically inhabits terrestrial and aquatic environments including forests and freshwater-adjacent marine areas, often occurring in shallow subtidal and intertidal zones of temperate European seas. It is classified as Least Concern on the IUCN Red List. As a member of the family Akeridae, the common bubble snail is characterized by its thin, fragile shell and its ability to swim briefly by flapping its large, wing-like parapodia. The species often forages on algae and detritus in sandy and muddy seafloor habitats, particularly in sheltered bays and estuaries. The common bubble snail typically aggregates in large numbers during the spawning season, producing gelatinous egg masses. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden