Powelliphanta is a genus of large, air-breathing land snails, pulmonate gastropods in the family Rhytididae, found only in New Zealand. They are carnivorous, eating invertebrates, mostly native earthworms. Often restricted to very small areas of moist forest, they are prey to introduced mammalian predators, and many species are threatened or endangered.
Potamopyrgus is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Tateidae.
Charopidae is a taxonomic family of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Punctoidea.
Microtralia insularis is a species of minute air-breathing land snail, a marine pulmonate gastropod mollusc in the family Ellobiidae.
Danilia is a genus of sea snails, marine gastropod molluscs of the family Chilodontaidae.
Danilia insperata is a species of sea snail, a marine gastropod mollusc, in the family Chilodontidae.
Smeagol is a genus of small air-breathing sea slugs of the upper intertidal zone. They are pulmonate gastropod mollusks related to land slugs and snails.
Cytora is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Pupinidae. This genus is endemic to New Zealand.
Pseudaneitea is a genus of air-breathing land slugs, terrestrial gastropod molluscs in the family Athoracophoridae, the leaf-veined slugs.
Otoconcha is a genus of small air-breathing semi-slugs, terrestrial pulmonate gastropod molluscs in the family Charopidae.
Tateidae is a family of very small and minute aquatic snails with an operculum, gastropod mollusks in the superfamily Truncatelloidea.
Iphitus is a genus of small sea snails, marine gastropods in the family Epitoniidae of the superfamily Epitonioidea, the wentletraps, the purple snails, and their allies.
Catapyrgus sororius is a critically endangered species of fresh water snail endemic to New Zealand.
Hadopyrgus ngataana is a tiny, transparent, and critically endangered freshwater snail, found only in a single stream in a cave in New Zealand.
Hadopyrgus is a genus of white or transparent freshwater snails found only in New Zealand. They are micromolluscs, just a few millimetres long, in the gastropod family Tateidae. Hadopyrgus species are subterranean – living in caves, underground aquifers, or deep in river gravels – and so were named from the Greek hades (underworld) and pyrgos (tower). They can have quite restricted ranges: Hadopyrgus ngataana, for example, has been found in just one pool, in a stream flowing through a single cave.
Opacuincola is a genus of New Zealand freshwater snails in the family Tateidae.
Rotadiscus is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Charopidae.
Crosseana is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Tateidae.
Leiorhagium is a genus of small freshwater snails, aquatic gastropod mollusks in the family Tateidae.
