common bubble snail vs river moss

Akera bullata compared with Fontinalis hypnoides

Taxonomic Classification

Rank	common bubble snail	river moss
Kingdom	Animalia (动物界)	Plantae (植物)
Phylum	Mollusca (软体动物门)	Bryophyta
Class	Gastropoda (腹足纲)	Bryopsida (真藓纲)
Order	Aplysiida (海鹿目)	Hypnales (灰藓目)
Family	Akeridae	Fontinalaceae
Genus	Akera	Fontinalis
Species	Akera bullata	Fontinalis hypnoides

Conservation Status

common bubble snail

LC — Least Concern

river moss

LC — Least Concern

Physical Characteristics

Attribute	common bubble snail	river moss
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.

river moss

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Sweden, and United States.

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.