Aeneator marshalli separabilis Dell, 1956 (original description)
Antiguraleus abernethyi Dell, 1956 (original description)
Antiguraleus fusiformis Dell, 1956 (original description)
Antiguraleus multistriatus Dell, 1956 (original description)
Antiguraleus pulcherrimus Dell, 1956 (original description)
Asperdaphne ula (R. B. Watson, 1881) (additional source)
Austrotindaria benthicola Dell, 1956 accepted as Neilonella benthicola (Dell, 1956) (original description)
Brookula benthicola Dell, 1956 (original description)
Cirsonella propelaxa Dell, 1956 (original description)
Comitas onokeana vivens Dell, 1956 (original description)
Comptella coronata Dell, 1956 accepted as Terefundus coronatus (Dell, 1956) (original description)
Cuspidaria morelandi Dell, 1956 (original description)
Cuspidaria morioria Dell, 1956 (original description)
Cyclopecten powelli Dell, 1956 (original description)
Cylichna bulloidea Dell, 1956 (original description)
Falsilunatia subperforata Dell, 1956 (original description)
Haurakia otagoensis Dell, 1956 (original description)
Haurakia subsuturalis Dell, 1956 (original description)
Hipponyx [sic] accepted as Hipponix Blainville, 1819 (additional source)
Jupiteria wolffi Dell, 1956 (original description)
Liotella mackenae Dell, 1956 (original description)
Liracraea odhneri benthicola Dell, 1956 (original description)
Liratilia conquisita chathamensis Dell, 1956 (original description)
Liratilia isolata Dell, 1956 (original description)
Lissotesta ambigua Dell, 1956 (original description)
Lissotesta otagoensis Dell, 1956 (original description)
Maoricrater Dell, 1956 (original description)
Neactaeonina inexpectata Dell, 1956 (original description)
Nepotilla powelli Dell, 1956 (original description)
Odostomia corpulentoides Dell, 1956 (original description)
Parvamussium maorium Dell, 1956 (original description)
Penion benthicolus Dell, 1956 accepted as Antarctoneptunea benthicola (Dell, 1956) (original description)
Planpyrgiscus lawsi Dell, 1956 (original description)
Pleuromeris ultima Dell, 1956 (original description)
Poirieria kopua Dell, 1956 (original description)
Retusa oruaensis (W. H. Webster, 1908) (status source)
Scaphander otagoensis Dell, 1956 (original description)
Splendrillia benthicola Dell, 1956 (original description)
Splendrillia hermata Dell, 1956 (original description)
Splendrillia jacula Dell, 1956 (original description)
Splendrillia roseacincta Dell, 1956 (original description)
Splendrillia runcinata Dell, 1956 (original description)
Tecticrater Dell, 1956 (original description)
Terefundus quadricinctus unicarinatus Dell, 1956 accepted as Terefundus unicarinatus Dell, 1956 (original description)
Terelimella benthicola Dell, 1956 (original description)
Uberella alacris Dell, 1956 (original description)
Volvulella tragula (Hedley, 1903) (basis of record)
Volvulella truncata Dell, 1956 (original description)
Xanthodaphne maoria Dell, 1956 (original description)
Zeadmete otagoensis Dell, 1956 (original description)
Zeadmete ovalis Dell, 1956 (original description)
Zemitrella benthicola Dell, 1956 (original description)
Zetela variabilis Dell, 1956 (original description)