common bubble snail vs Perlemoen

Akera bullata compared with Haliotis midae

Key Differences

• common bubble snail is Least Concern while Perlemoen is Endangered.

Taxonomic Classification

Rank	common bubble snail	Perlemoen
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Gastropoda (Gastropoda)	Gastropoda (Gastropoda)
Order	Aplysiida (Aplysiida)	Lepetellida (Lepetellida)
Family	Akeridae	Haliotidae
Genus	Akera	Haliotis
Species	Akera bullata	Haliotis midae

Evolutionary Relationship

common bubble snail and Perlemoen share a common ancestor at the Class level: Gastropoda. (Gastropoda)

Conservation Status

common bubble snail

LC — Least Concern

Perlemoen

EN — Endangered

Physical Characteristics

Attribute	common bubble snail	Perlemoen
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.

Perlemoen

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and Mediterranean forests and woodlands, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Norway and South Africa. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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 1 countries:

🇳🇴 Norway