common bubble snail vs Intermediate Periwinkle

Akera bullata compared with Vinca difformis

Key Differences

common bubble snail is Least Concern while Intermediate Periwinkle is Not Evaluated.

Taxonomic Classification

Rank	common bubble snail	Intermediate Periwinkle
Kingdom	Animalia (동물)	Plantae (식물)
Phylum	Mollusca (연체동물)	Magnoliophyta (피자식물문)
Class	Gastropoda (복족강)	Magnoliopsida (목련강)
Order	Aplysiida (Aplysiida)	Gentianales (용담목)
Family	Akeridae	Apocynaceae
Genus	Akera	Vinca
Species	Akera bullata	Vinca difformis

Conservation Status

common bubble snail

LC — Least Concern

Intermediate Periwinkle

NE — Not Evaluated

Physical Characteristics

Attribute	common bubble snail	Intermediate Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

common bubble snail

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Intermediate Periwinkle

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (7 countries).

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.