Arrow-head tree snail vs Atiu Swiftlet

Partula sagitta compared with Aerodramus sawtelli

Key Differences

• Arrow-head tree snail is Extinct while Atiu Swiftlet is Vulnerable.

Taxonomic Classification

Rank	Arrow-head tree snail	Atiu Swiftlet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Aves (Birds)
Order	Stylommatophora (Stylommatophora)	Apodiformes (Apodiformes)
Family	Partulidae	Apodidae
Genus	Partula	Aerodramus
Species	Partula sagitta	Aerodramus sawtelli

Evolutionary Relationship

Arrow-head tree snail and Atiu Swiftlet share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arrow-head tree snail

EX — Extinct

Atiu Swiftlet

VU — Vulnerable

Physical Characteristics

Attribute	Arrow-head tree snail	Atiu Swiftlet
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.

Atiu Swiftlet

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

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

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.

Atiu Swiftlet

The Atiu Swiftlet (Aerodramus sawtelli) is a species in the genus Aerodramus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.