Brazier's Ear Shell vs common grey sea slug

Haliotis brazieri compared with Aeolidia papillosa

Key Differences

• Brazier's Ear Shell is Near Threatened while common grey sea slug is Least Concern.

Taxonomic Classification

Rank	Brazier's Ear Shell	common grey sea slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Gastropoda (Gastropoda)	Gastropoda (Gastropoda)
Order	Lepetellida (Lepetellida)	Nudibranchia (Nudibranchia)
Family	Haliotidae	Aeolidiidae
Genus	Haliotis	Aeolidia
Species	Haliotis brazieri	Aeolidia papillosa

Evolutionary Relationship

Brazier's Ear Shell and common grey sea slug share a common ancestor at the Class level: Gastropoda. (Gastropoda)

Conservation Status

Brazier's Ear Shell

NT — Near Threatened

common grey sea slug

LC — Least Concern

Physical Characteristics

Attribute	Brazier's Ear Shell	common grey sea slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brazier's Ear Shell

Habitat

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

Range

Found in Australia. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

common grey sea slug

Habitat

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

Range

Distributed across Belgium, Chile, Denmark, Norway, and Sweden.

Brazier's Ear Shell

The Brazier's Ear Shell (Haliotis brazieri) is a species in the genus Haliotis. It is currently classified as Near Threatened on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

common grey sea slug

<em>Aeolidia papillosa</em>, commonly known as the common grey sea slug, is a nudibranch mollusc belonging to the genus Aeolidia within the family Aeolidiidae. Despite the species name referencing terrestrial and aquatic habitats including forests and freshwater, <em>Aeolidia papillosa</em> is primarily a marine organism. Its range includes Belgium, Chile, Denmark, Norway, and Sweden, indicating a distribution across the North Atlantic and into South American waters. Common grey sea slug is assessed as Least Concern on the IUCN Red List. The species is typically found in intertidal and subtidal zones, where it preys on sea anemones and stores stinging cells from its prey in its dorsal cerata for defense. Biological traits of this species remain poorly documented in the scientific literature.