Blackstem Spleenwort vs common bubble snail

Asplenium resiliens compared with Akera bullata

Key Differences

Blackstem Spleenwort is Not Evaluated while common bubble snail is Least Concern.

Taxonomic Classification

Rank	Blackstem Spleenwort	common bubble snail
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Mollusca (Mollusks)
Class	Polypodiopsida (Polypodiopsida)	Gastropoda (Gastropoda)
Order	Polypodiales (Polypodiales)	Aplysiida (Aplysiida)
Family	Aspleniaceae	Akeridae
Genus	Asplenium	Akera
Species	Asplenium resiliens	Akera bullata

Conservation Status

Blackstem Spleenwort

NE — Not Evaluated

common bubble snail

LC — Least Concern

Physical Characteristics

Attribute	Blackstem Spleenwort	common bubble snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackstem Spleenwort

Habitat

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

Range

Distributed across Brazil, Colombia, and United States.

common bubble snail

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Blackstem Spleenwort

The Blackstem Spleenwort (Asplenium resiliens) is a species in the genus Asplenium. Typically found in moist, shaded forest floors and tropical canopies.

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.