W

Aeneator otagoensis is a species of large sea snail, a whelk, a marine gastropod mollusc in the family Buccinidae, the true whelks.

W

Alvania gallinacea is a species of minute sea snail with an operculum, a marine gastropod mollusk or micromollusk in the family Rissoidae.

W

Alvania gradatoides is a species of minute sea snail with an operculum, a marine gastropod mollusk in the family Rissoidae.

W

Astralium tentorium is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.

W

Babelomurex finchii, common name Finch's latiaxis, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

W

Cirsonella consobrina is a minute sea snail, a marine gastropod mollusc in the family Skeneidae.

W

Cymbium pachyus, commonly known as the dilated baler volute is a species of sea snail, a marine gastropod mollusk in the family Volutidae, the volutes.

W

Cypraeovula coronata is a species of sea snail, a cowry, a marine gastropod mollusc in the family Cypraeidae, the cowries.

W

Diodora lincolnensis is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

W

Facelina quadrilineata is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.

W

Goniobranchus kuniei is a species of very colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.

W

Hirtomurex winckworthi is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

W

Infundibulum tomlini is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

W

Jujubinus polychromus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

W

Lucapina philippiana is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.

W

Mauritia grayana, the 'Gray's Arabica Cowry', is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.

W

Monodilepas otagoensis is a species of small sea snail, a keyhole limpet, a subspecies of marine gastropod mollusc in the family Fissurellidae, the keyhole limpets and slit limpets.

W

Phenacovolva nectarea is a species of sea snail, a marine gastropod mollusk in the family Ovulidae, the ovulids, cowry allies or false cowries.

W

Powelliphanta superba is a species of large, carnivorous land snail in the family Rhytididae, which is endemic to the South Island of New Zealand. Five subspecies are recognised, all of which are classified by the New Zealand Department of Conservation as being Nationally Endangered.Powelliphanta superba harveyi Powelliphanta superba mouatae Powelliphanta superba prouseorum Powelliphanta superba richardsoni Powelliphanta superba superba

W

Powelliphanta traversi, known as Travers' land snail, is a species of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae. This species is endemic to the North Island of New Zealand between Wellington and Lake Waikaremoana.

W

Sakuraeolis enosimensis is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.

W

Splendrillia aoteana is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.

W

Triviella phalacra is a species of small sea snail, a marine gastropod mollusk in the family Triviidae, the false cowries or trivias.