Belgrandiella intermedia was a species of very small freshwater snail, an aquatic gastropod mollusc in the family Hydrobiidae.
Bonhamaropa erskinensis is a species of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. This species is endemic to Australia.
Beddomeia bellii is a species of very small freshwater snail that has a gill and an operculum, an aquatic operculate gastropod mollusc in the family Hydrobiidae. This species is endemic to Australia.
Beddomeia hullii is a species of very small freshwater snail that has a gill and an operculum, an aquatic operculate gastropod mollusc in the family Hydrobiidae. This species is endemic to Australia.
Ladronellum mariannarum is a species of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae. This species is endemic to Guam.
Nesopupa is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Nesopupinae of the family Vertiginidae.
Taheitia alata is a species of very small land snail that has an operculum and lives very near saltwater, a maritime terrestrial gastropod mollusk in the family Truncatellidae. This species is endemic to Guam.
Taheitia is a genus of very small land snails that have an operculum and live near saltwater, maritime terrestrial gastropod mollusks in the family Truncatellidae.
Taheitia lamellicosta is a species of very small land snail that has an operculum and lives very near saltwater, a maritime terrestrial gastropod mollusc in the family Truncatellidae. This species is endemic to Guam.
Taheitia parvula is a species of very small land snail that has an operculum and lives very near saltwater, a maritime terrestrial gastropod mollusc in the family Truncatellidae. This species is endemic to Guam.
Cytora hirsutissima is a species of very small land snails with an operculum, terrestrial gastropod molluscs in the family Pupinidae.
A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature as being threatened with extinction unless the circumstances that are threatening its survival and reproduction improve.
