Asian swordfern vs common bubble snail

Nephrolepis brownii compared with Akera bullata

Key Differences

• Asian swordfern is Not Evaluated while common bubble snail is Least Concern.

Taxonomic Classification

Rank	Asian swordfern	common bubble snail
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Mollusca (Mollusks)
Class	Polypodiopsida (Polypodiopsida)	Gastropoda (Gastropoda)
Order	Polypodiales (Polypodiales)	Aplysiida (Aplysiida)
Family	Nephrolepidaceae	Akeridae
Genus	Nephrolepis	Akera
Species	Nephrolepis brownii	Akera bullata

Conservation Status

Asian swordfern

NE — Not Evaluated

common bubble snail

LC — Least Concern

Physical Characteristics

Attribute	Asian swordfern	common bubble snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Asian swordfern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Widely distributed across Asia (Singapore, Taiwan), North America (4 countries), and South America (Brazil, Colombia).

common bubble snail

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Asian swordfern

The Asian swordfern (Nephrolepis brownii) is a species in the genus Nephrolepis. Typically found in moist, shaded forest floors and tropical canopies. Widely distributed across Asia (Singapore, Taiwan), North America (4 countries), and South America (Brazil, Colombia).

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.