Arrow-head tree snail vs Gray/Purple Heron

Partula sagitta compared with Ardea cinerea

Key Differences

• Arrow-head tree snail is Extinct while Gray/Purple Heron is Least Concern.

Taxonomic Classification

Rank	Arrow-head tree snail	Gray/Purple Heron
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Aves (Birds)
Order	Stylommatophora (Stylommatophora)	Pelecaniformes (Pelecaniformes)
Family	Partulidae	Ardeidae
Genus	Partula	Ardea
Species	Partula sagitta	Ardea cinerea

Evolutionary Relationship

Arrow-head tree snail and Gray/Purple Heron share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arrow-head tree snail

EX — Extinct

Gray/Purple Heron

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Arrow-head tree snail	Gray/Purple Heron
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	95 cm
Average Weight	—	1.5 kg

Habitat & Geographic Range

Arrow-head tree snail

Habitat

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

Gray/Purple Heron

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries).

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.

Gray/Purple Heron

A large, elegant wading bird reaching up to 1 meter in height, gray herons inhabit wetlands, rivers, lakes, and coastal areas across Europe, Asia, and Africa. Patient, solitary hunters, they stand motionless for long periods before striking fish, frogs, and small mammals with lightning-fast dagger bill strikes. They nest colonially in tall trees in rookeries called heronries, sometimes shared with other colonial waterbirds. Widely distributed and of Least Concern globally.