Arrowspine dogfish vs common bubble snail

Centrophorus moluccensis compared with Akera bullata

Key Differences

• Arrowspine dogfish is Vulnerable while common bubble snail is Least Concern.

Taxonomic Classification

Rank	Arrowspine dogfish	common bubble snail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Elasmobranchii	Gastropoda (Gastropoda)
Order	Squaliformes (Squaliformes)	Aplysiida (Aplysiida)
Family	Centrophoridae	Akeridae
Genus	Centrophorus	Akera
Species	Centrophorus moluccensis	Akera bullata

Evolutionary Relationship

Arrowspine dogfish and common bubble snail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arrowspine dogfish

VU — Vulnerable

common bubble snail

LC — Least Concern

Physical Characteristics

Attribute	Arrowspine dogfish	common bubble snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arrowspine dogfish

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

common bubble snail

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Arrowspine dogfish

The Arrowspine dogfish, Centrophorus moluccensis, is a species. It is currently assessed as vulnerable on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

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.