Brown Scalewort vs common bubble snail

Radula aquilegia compared with Akera bullata

Key Differences

Brown Scalewort is Not Evaluated while common bubble snail is Least Concern.

Taxonomic Classification

Rank	Brown Scalewort	common bubble snail
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Mollusca (Mollusks)
Class	Jungermanniopsida (Jungermanniopsida)	Gastropoda (Gastropoda)
Order	Porellales (Porellales)	Aplysiida (Aplysiida)
Family	Radulaceae	Akeridae
Genus	Radula	Akera
Species	Radula aquilegia	Akera bullata

Conservation Status

Brown Scalewort

NE — Not Evaluated

common bubble snail

LC — Least Concern

Physical Characteristics

Attribute	Brown Scalewort	common bubble snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Scalewort

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden.

common bubble snail

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Brown Scalewort

The Brown Scalewort (Radula aquilegia) is a species in the genus Radula. Native to Europe, inhabiting ecosystems characteristic of the region. Distributed across Norway, Portugal, and Sweden. As a member of the genus Radula, it shares characteristics with related species within this taxonomic group.

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.