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".
Phenatoma is a genus of predatory sea snails, marine gastropod mollusks in the family Borsoniidae.
Sigapatella is a genus of small to medium-sized sea snails, marine gastropod molluscs in the family Calyptraeidae, the slipper snails, Chinese hat snails, and cup-and-saucer snails.
Spectamen is a genus of small sea snails, marine gastropod molluscs in the family Solariellidae within the superfamily Trochoidea.
Comitas is a genus of medium-sized sea snails, marine gastropod molluscs in the family Pseudomelatomidae.
Penion is a genus of large marine snails, commonly known as siphon whelks, classified within the mollusc family Austrosiphonidae.
Buccinulum is a genus of sea snails, marine gastropod molluscs in the whelk family Tudiclidae.
Aeneator is a genus of sea snails, marine gastropod molluscs in the whelk family Tudiclidae.
Conjectura is a genus of very small sea snails or micromolluscs, marine gastropod molluscs in the family Conradiidae.
Maoricolpus, common name the "New Zealand screw shells", is a genus of sea snails, marine gastropod molluscs in the family Turritellidae, the Turritella snails.
Austrotriton is a genus of medium-sized sea snails, a marine gastropod mollusc in the family Cymatiidae.
Marshallena philippinarum is a species of sea snail, a marine gastropod mollusk in the family Marshallenidae.
Epidirella is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids.
Lucerapex is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids.
Cryptodaphne is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Benthomangelia is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae.
Austromitra is a genus of sea snails in the family Costellariidae. They are small carnivorous marine gastropod mollusks, most of which are less than 15 mm in length. They live on hard substrates, intertidally and to a depth of at least 1000 m. The genus is found in southern Africa, southern Australia, New Caledonia, and New Zealand.
Maoritomella is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.
Marshallena neozelanica is a species of sea snail, a marine gastropod mollusk in the family Marshallenidae.
Austrotoma is a genus of sea snails, marine gastropod mollusks, unassigned to a family within the superfamily Conoidea.
