Ampullariidae, whose members are commonly known as apple snails, is a family of large freshwater snails that includes the mystery snail species. They are aquatic gastropod mollusks with a gill and an operculum. These snails simultaneously have a gill and a lung as functional 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 organism is either male or female.
Bulinus is a genus of small tropical freshwater snails, aquatic gastropod mollusks in the family Bulinidae, the ramshorn snails and their allies.
The red-rimmed melania, also known as Malayan livebearing snails or Malayan/Malaysian trumpet snails by aquarists, is a species of freshwater snail with an operculum, a parthenogenetic, aquatic gastropod mollusk in the family Thiaridae.
Biomphalaria salinarum is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusc in the family Planorbidae, the ram's horn snails.
Cleopatra ferruginea is a species of freshwater snails with an operculum, aquatic gastropod molluscs in the family Paludomidae.
Lanistes is a genus of freshwater snails which have a gill and an operculum, aquatic gastropod mollusks in the family Ampullariidae, the apple snails.
Lanistes ciliatus is a species of large freshwater snail, an aquatic gastropod mollusk with a gill and an operculum in the family Ampullariidae, the apple snails.
Lanistes intortus is a species of large freshwater snail, an aquatic gastropod mollusk with a gill and an operculum in the family Ampullariidae, the apple snails.
Lanistes nasutus is a species of large freshwater snail, an aquatic gastropod mollusk with a gill and an operculum in the family Ampullariidae, the apple snails.
Lanistes neavei is a species of large freshwater snail, an aquatic gastropod mollusk with a gill and an operculum in the family Ampullariidae, the apple snails.
Lanistes nyassanus is a species of large freshwater snail, an aquatic gastropod mollusk with a gill and an operculum in the family Ampullariidae, the apple snails. The shell of this species is unusual in that it has left-handed shell-coiling.
Lanistes solidus is a species of large freshwater snail, an aquatic gastropod mollusk with a gill and an operculum in the family Ampullariidae, the apple snails.
Lanistes stuhlmanni is a species of large freshwater snail, an aquatic gastropod mollusc with a gill and an operculum in the family Ampullariidae, the apple snails.
Tomichia cawstoni is a species of very small freshwater snails which have a gill and an operculum, gastropod molluscs or micromolluscs in the family Tomichiidae.
Gyraulus costulatus is a species of air-breathing freshwater snail, aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.
