common bubble snail vs smooth giant clam

Akera bullata compared with Tridacna derasa

Key Differences

• common bubble snail is Least Concern while smooth giant clam is Vulnerable.

Taxonomic Classification

Rank	common bubble snail	smooth giant clam
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class	Gastropoda (Gastropoda)	Bivalvia (Bivalvia)
Order	Aplysiida (Aplysiida)	Cardiida (Cardiida)
Family	Akeridae	Cardiidae
Genus	Akera	Tridacna
Species	Akera bullata	Tridacna derasa

Evolutionary Relationship

common bubble snail and smooth giant clam share a common ancestor at the Phylum level: Mollusca. (Mollusks)

Conservation Status

common bubble snail

LC — Least Concern

smooth giant clam

VU — Vulnerable

Physical Characteristics

Attribute	common bubble snail	smooth giant clam
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.

smooth giant clam

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Marshall Islands and Taiwan. Currently classified as Vulnerable 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.