Atlantic Ancula vs common hydra

Ancula gibbosa compared with Hydra vulgaris

Key Differences

• Atlantic Ancula is Least Concern while common hydra is Not Evaluated.

Taxonomic Classification

Rank	Atlantic Ancula	common hydra
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Cnidaria (Cnidarians)
Class	Gastropoda (Gastropoda)	Hydrozoa (Hydrozoa)
Order	Nudibranchia (Nudibranchia)	Anthoathecata (Anthoathecata)
Family	Goniodorididae	Hydridae
Genus	Ancula	Hydra
Species	Ancula gibbosa	Hydra vulgaris

Evolutionary Relationship

Atlantic Ancula and common hydra share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Atlantic Ancula

LC — Least Concern

common hydra

NE — Not Evaluated

Physical Characteristics

Attribute	Atlantic Ancula	common hydra
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Ancula

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.

common hydra

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Atlantic Ancula

The Atlantic Ancula (Ancula gibbosa) is a species in the genus Ancula. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

common hydra

<em>Hydra vulgaris</em>, commonly known as the common hydra, is a small freshwater cnidarian in the family Hydridae. Its conservation status has not been formally evaluated by the IUCN. The species is recorded from Denmark, Norway, and Sweden, with its native range understood to encompass Europe broadly. It typically inhabits slow-moving or still freshwater bodies such as ponds, lakes, and streams, where it attaches to aquatic vegetation or submerged substrates. The common hydra is notable for its remarkable regenerative capabilities and has been the subject of substantial biological research. Diet information for this species is not available in current records. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden