Apple snail

Ampullariidae
Apple snail
Temporal range:
Spike-topped apple snail
Pomacea bridgesii
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Architaenioglossa
Superfamily: Ampullarioidea
Family: Ampullariidae
J. E. Gray, 1824
Diversity
105–170 species
Synonyms

Pilidae Preston, 1915
Sauleini Berthold, 1991

Ampullariidae (commonly known as apple snails), is a family of large freshwater snails that includes the mystery snail species. They present an operculum and simultaneously have a gill and a lung as respiratory structures, which are separated by a division of the mantle cavity. This adaptation allows these animals to be amphibious. Species in this family are considered gonochoristic, meaning that each individual is either male or female.