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".
Coelotrochus chathamensis is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails or top shells.
Trichosirius inornatus is a species of medium-sized sea snail, a marine gastropod mollusc in the family Capulidae, the cap snails.
Buccinulum vittatum is a species of sea snail, a marine gastropod mollusc in the family Tudiclidae.
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.
Cadulus teliger is a species of small tusk shell, a marine scaphopod mollusk in the family Gadilidae. This species is endemic to New Zealand waters. It can be found from the Three Kings Islands to the Chatham Islands, at depths of between 15 and 360 m, and lives off the Auckland Islands at depths of approximately 170 m.
Talochlamys zelandiae, common name the fan shell, is a species of marine bivalve mollusc in the scallop family Pectinidae.
Roseaplagis caelatus is a species of small sea snail in the family Trochidae, the top shells.
Micrelenchus sanguineus is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top shells.
Taranis benthicola is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
Antiguraleus otagoensis is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
Liracraea odhneri is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
Pisinna rekohuana is a species of marine gastropod mollusc in the family Anabathridae. First described by Badwn Powell in 1933 as Estea rekohuana, it is endemic to the waters of New Zealand. There are two subspecies of the gastropod: Pisinna rekohuana rekohuana, primarily found in the south and Pisinna rekohuana lactorubra, primarily found on the north-east coast of the North Island.
Tubbreva exaltata is a species of marine gastropod mollusc in the family Anabathridae. First described by Badwn Powell in 1933 as Notosetia exaltata, it is endemic to the waters of New Zealand. There are two subspecies, Tubbreva exaltata exaltata and Tubbreva exaltata sorenseni.
Pupatonia gracilispira is a species of marine gastropod mollusc in the family Eatoniellidae. First described by Baden Powell in 1933 as Estea gracilispira, it is endemic to the waters of New Zealand.
Zemitrella finlayi is a species of sea snail, a marine gastropod mollusk in the family Columbellidae, the dove snails.
Alvania pinguis is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Alvania solitaria is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Alvania aupouria is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Alvania exserta is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
