Partula tristis

Partula tristis is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species was endemic to Ra'iātea, French Polynesia. It is now extinct.^[1] It is informally known as the mournful tree snail.^[2]

Partula tristis
Conservation status
Extinct  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Partulidae
Genus:	Partula
Species:	†P. tristis
Binomial name
†Partula tristis Crampton & Cooke, 1953