Arrow-head tree snail vs Atlantic Ancula

Partula sagitta compared with Ancula gibbosa

Key Differences

• Arrow-head tree snail is Extinct while Atlantic Ancula is Least Concern.

Taxonomic Classification

Rank	Arrow-head tree snail	Atlantic Ancula
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Mollusca (Mollusks)	Mollusca (Mollusks)
Class same	Gastropoda (Gastropoda)	Gastropoda (Gastropoda)
Order	Stylommatophora (Stylommatophora)	Nudibranchia (Nudibranchia)
Family	Partulidae	Goniodorididae
Genus	Partula	Ancula
Species	Partula sagitta	Ancula gibbosa

Evolutionary Relationship

Arrow-head tree snail and Atlantic Ancula share a common ancestor at the Class level: Gastropoda. (Gastropoda)

Conservation Status

Arrow-head tree snail

EX — Extinct

Atlantic Ancula

LC — Least Concern

Physical Characteristics

Attribute	Arrow-head tree snail	Atlantic Ancula
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arrow-head tree snail

Habitat

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

Atlantic Ancula

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden.

Arrow-head tree snail

The Arrow-head tree snail, Partula sagitta, is a species. It is currently assessed as extinct on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

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.