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.
Tonna tankervillii is a very large species of sea snail or tun snail, a marine gastropod mollusc in the family Tonnidae, the tun shells.
Rhytida oconnori is a species of medium-sized, air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae. It is found only at the top of New Zealand's South Island in the Abel Tasman National Park and at Parapara Peak in Golden Bay.
Arthur William Baden Powell was a New Zealand malacologist, naturalist and palaeontologist, a major influence in the study and classification of New Zealand molluscs through much of the 20th century. He was known to his friends and family by his third name, "Baden".
Thoristella is a genus of sea snails, marine gastropod molluscs in the family Trochidae, the top snails or top shells.
Tonna cumingi, common name Cuming's tun, is a species of very large sea snail, a tun snail, a marine gastropod mollusc in the family Tonnidae, the tuns.
Ellatrivia merces is a species of small sea snail, a marine gastropod mollusc in the family Triviidae, the trivias.
Kerguelenella lateralis is a species of air-breathing sea snail or false limpet, a marine pulmonate gastropod mollusc in the family Siphonariidae, the false limpets.
Tonna is a genus of large sea snails, marine gastropod molluscs in the family Tonnidae, the tun or cask shells.
Tonna tetracotula is a species of very large sea snail or tun snail, a marine gastropod mollusc in the family Tonnidae, the tun shells.
Tonna melanostoma is a species of large sea snail, a marine gastropod mollusc in the family Tonnidae, the tun shells.
Tonna perdix, common name the partridge tun, is a species of very large sea snail, a marine gastropod mollusc in the family Tonnidae, the tun shells.
Tenagodus weldii is a species of sea snail, a marine gastropod mollusc in the family Siliquariidae, common name the slit worm snails. It was first described by Julian Tenison-Woods in 1876. This species is endemic to New Zealand.
Zeidora maoria is a species of small sea snail, specifically a keyhole limpet, a marine gastropod mollusc in the family Fissurellidae, the keyhole limpets.
Stiracolpus ahiparanus, common name : the keeled screw shell, is a species of small sea snail, a marine gastropod mollusc in the family Turritellidae.
Glaphyrina plicata is a species of large sea snail, a marine gastropod mollusc in the family Fasciolariidae.
Annaperenna verrucosa, common name the warty ranella, is a species of large sea snail, a marine gastropod mollusc in the family Bursidae, known as the frog shells.
Micrelenchus is a genus of small sea snails that have shells with pearly interiors and an operculum. They are marine gastropod molluscs in the subfamily Cantharidinae of the family Trochidae, the top snails or top shells.
Tonna lischkeana is a species of large sea snail, a marine gastropod mollusk in the family Tonnidae, the tun shells.
