真海豚 vs common grey sea slug

Delphinus delphis compared with Aeolidia papillosa

Taxonomic Classification

Rank	真海豚	common grey sea slug
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Mollusca (软体动物门)
Class	Mammalia (哺乳動物)	Gastropoda (腹足纲)
Order	Cetacea (Whales & Dolphins)	Nudibranchia (裸鳃目)
Family	Delphinidae (Oceanic Dolphins)	Aeolidiidae
Genus	Delphinus	Aeolidia
Species	Delphinus delphis	Aeolidia papillosa

Evolutionary Relationship

真海豚 and common grey sea slug share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

真海豚

LC — Least Concern

common grey sea slug

LC — Least Concern

Physical Characteristics

Attribute	真海豚	common grey sea slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

真海豚

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

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.

真海豚

大西洋斑纹海豚（Stenella frontalis）是一种中等体型的海豚，分布于热带和温暖的温带大西洋海域。该物种保护状态为无危（LC），以其体侧的白色斑纹和活泼的行为著称，常与渔船伴游。

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.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden