Arrow-head tree snail vs Red-billed Duck

Partula sagitta compared with Anas erythrorhyncha

Key Differences

• Arrow-head tree snail is Extinct while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Arrow-head tree snail	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Aves (Birds)
Order	Stylommatophora (Stylommatophora)	Anseriformes (Anseriformes)
Family	Partulidae	Anatidae
Genus	Partula	Anas
Species	Partula sagitta	Anas erythrorhyncha

Evolutionary Relationship

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

Conservation Status

Arrow-head tree snail

EX — Extinct

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Arrow-head tree snail	Red-billed Duck
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.

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

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.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.