Amphidesma (Taria) porrectum Marwick, 1928 † accepted as Paphies (Taria) subtriangulata (W. Wood, 1828) represented as Paphies subtriangulata (W. Wood, 1828) (original description)
Arca pittensis Marwick, 1928 † (original description)
Argalista arta Marwick, 1928 † (original description)
Argalista effusa Marwick, 1928 † (original description)
Ascitellina Marwick, 1928 accepted as Elliptotellina Cossmann, 1886 (original description)
Ascitellina donaciformis Marwick, 1928 † accepted as Elliptotellina donaciformis (Marwick, 1928) † (original description)
Atalacmea elata Marwick, 1928 † (original description)
Ataxocerithium simplex Marwick, 1928 † (original description)
Athlopecten Marwick, 1928 † (original description)
Austromitra plicifera Marwick, 1928 † accepted as Peculator pliciferus (Marwick, 1928) † (original description)
Austrosipho (Verconella) asper Marwick, 1928 † accepted as Penion asper (Marwick, 1928) † (original description)
Barbatia (Acar) whangaensis Marwick, 1928 † accepted as Acar whangaensis (Marwick, 1928) † (original description)
Barbatia (Pugilarca) barneaformis Marwick, 1928 † accepted as Pugilarca barneaformis (Marwick, 1928) † (original description)
Barbatia whangaensis Marwick, 1928 † accepted as Acar whangaensis (Marwick, 1928) † (original description)
Bassinaria Marwick, 1928 † accepted as Circomphalus Mörch, 1853 (original description)
Bassinaria macclurgi Marwick, 1928 † accepted as Circomphalus yatei (Gray, 1835) accepted as Bassina (Callanaitis) yatei (Gray, 1835) represented as Bassina yatei (Gray, 1835) (original description)
Cardita northcrofti Marwick, 1928 † (original description)
Chama pittensis Marwick, 1928 † accepted as Chama ruderalis Lamarck, 1819 (original description)
Chlamys mercuria Marwick, 1928 † (original description)
Chlamys seymouri Marwick, 1928 † accepted as Zygochlamys seymouri (Marwick, 1928) † (original description)
Chlamys titirangiensis Marwick, 1928 † accepted as Zygochlamys delicatula (F. W. Hutton, 1873) (original description)
Cirsotrema (Tioria) Marwick, 1928 † represented as Cirsotrema Mörch, 1852 (original description)
Cirsotrema (Tioria) youngi Marwick, 1928 † represented as Cirsotrema youngi Marwick, 1928 † (original description)
Cirsotrema chathamense Marwick, 1928 † (original description)
Cirsotrema parvulum Marwick, 1928 † (original description)
Cirsotrema propelyratum Marwick, 1928 † (original description)
Cochlis pittensis Marwick, 1928 † accepted as Tanea pittensis (Marwick, 1928) † (original description)
Cominella (Eucominia) bauckei Marwick, 1928 † represented as Cominella bauckei Marwick, 1928 † (original description)
Cominella (Eucominia) ellisoni Marwick, 1928 † represented as Cominella ellisoni Marwick, 1928 † (original description)
Condylocardia torquata Marwick, 1928 accepted as Condylocuna torquata (Marwick, 1928) (original description)
Corbula howesi Marwick, 1928 † (original description)
Corbula tophina Marwick, 1928 † (original description)
Ctenoides naufragus Marwick, 1928 † (original description)
Cuna antiqua Marwick, 1928 † (original description)
Cuna firma Marwick, 1928 † (original description)
Dosinia (Kereia) chathamensis Marwick, 1928 † represented as Dosinia chathamensis Marwick, 1928 † (original description)
Ellicea Finlay, 1928 † accepted as Aeneator (Ellicea) H. J. Finlay, 1928 accepted as Aeneator H. J. Finlay, 1926 (original description)
Ellicea (Pittella) valida Marwick, 1928 † accepted as Aeneator validus (Marwick, 1928) † (original description)
Ellicea valida Marwick, 1928 † accepted as Aeneator validus (Marwick, 1928) † (original description)
Emarginula galeriformis Marwick, 1928 † (original description)
Emarginula pittensis Marwick, 1928 † (original description)
Estea insulana Marwick, 1928 † accepted as Pisinna insulana (Marwick, 1928) (original description)
Estea subtilicosta Marwick, 1928 † accepted as Pisinna subtilicosta (Marwick, 1928) † (original description)
Globisinum mucronatum Marwick, 1928 † accepted as Globisinum drewi (Murdoch, 1899) (original description)
Glycymeris hunti Marwick, 1928 † (original description)
Guraleus lineatus Marwick, 1928 † accepted as Neoguraleus lineatus (Marwick, 1928) † (original description)
Imperator anthropophagus Marwick, 1928 † accepted as Astraea heliotropium (Martyn, 1784) (original description)
Inquisitor acutus Marwick, 1928 † accepted as Mauidrillia acuta (Marwick, 1928) † (original description)
Korovina accelerans Marwick, 1928 † accepted as Vanikoro accelerans (Marwick, 1928) † (original description)
Lentipecten Marwick, 1928 † (original description)
Lentipecten (Duplipecten) Marwick, 1928 † accepted as Duplipecten Marwick, 1928 † (original description)
Lentipecten (Duplipecten) imperfectus Marwick, 1928 † accepted as Eburneopecten imperfectus (Marwick, 1928) † (original description)
Leptomya concentrica Marwick, 1928 † (original description)
Lima vasis Marwick, 1928 † (original description)
Limatula morioria Marwick, 1928 † (original description)
Limea chathamensis Marwick, 1928 † (original description)
Limopsis invalida Marwick, 1928 † (original description)
Liracraea titirangiensis Marwick, 1928 † (original description)
Lissarca fossilis Marwick, 1928 † (original description)
Margarella runcinata Marwick, 1928 † (original description)
Marginella coxi Marwick, 1928 † accepted as Mesoginella coxi (Marwick, 1928) † (original description)
Marginella floralis Marwick, 1928 † accepted as Dentimargo floralis (Marwick, 1928) † (original description)
Maurea finlayi Marwick, 1928 † (original description)
Merelina avita Marwick, 1928 † (original description)
Mitrithara granum Marwick, 1928 † accepted as Mitromorpha granum (Marwick, 1928) † (original description)
Monia furcilla Marwick, 1928 † accepted as Monia zelandica (Gray, 1843) (original description)
Myllitella pinguis Marwick, 1928 accepted as Myllita pinguis (Marwick, 1928) (original description)
Mytilus (Aulacomya) willetsi Marwick, 1928 † accepted as Brachidontes willetsi (Marwick, 1928) † (original description)
Nemocardium diversum Marwick, 1928 † accepted as Pratulum marwicki (Beu & P. A. Maxwell, 1990) † (original description)
Neogaimardia elegantula Marwick, 1928 † accepted as Gaimardia (Neogaimardia) elegantula (Marwick, 1928) † represented as Gaimardia elegantula (Marwick, 1928) † (original description)
Notosinister insertus Marwick, 1928 † accepted as Monophorus insertus (Marwick, 1928) † (original description)
Notostrea Finlay, 1928 † accepted as Pycnodonte (Notostrea) Finlay, 1928 † represented as Pycnodonte Fischer von Waldheim, 1835 (original description)
Notostrea lubra Finlay, 1928 † accepted as Pycnodonte lubra (Finlay, 1928) † (original description)
Odostomia pittensis Marwick, 1928 † accepted as Agatha pittensis (Marwick, 1928) † (original description)
Ostrea arcula Marwick, 1928 † (original description)
Ostrea cannoni Marwick, 1928 † accepted as Crenostrea cannoni (Marwick, 1928) † (original description)
Ostrea waitangiensis Marwick, 1928 † (original description)
Perotrochus allani Marwick, 1928 † (original description)
Perrierina ovata Marwick, 1928 † (original description)
Phalium (Kahua) Marwick, 1928 † accepted as Semicassis (Kahua) Marwick, 1928 † represented as Semicassis Mörch, 1852 (original description)
Phalium (Kahua) skinneri Marwick, 1928 † accepted as Semicassis (Kahua) skinneri (Marwick, 1928) † represented as Semicassis skinneri (Marwick, 1928) † (original description)
Phenatoma decessor Marwick, 1928 † (original description)
Phialopecten Marwick, 1928 † (original description)
Philobrya galerita Marwick, 1928 † (original description)
Pittella Marwick, 1928 † accepted as Aeneator H. J. Finlay, 1926 (original description)
Pugilarca Marwick, 1928 † (original description)
Pycnodonte lubra (Finlay, 1928) † (original description)
Rangimata Marwick, 1928 † (original description)
Rangimata pervia Marwick, 1928 † (original description)
Retusa pressa Marwick, 1928 † (original description)
Scalpomactra Finlay [in Marwick], 1928 (original description)
Sectipecten Marwick, 1928 † (original description)
Sectipecten allani Marwick, 1928 † (original description)
Sectipecten toaensis Marwick, 1928 † accepted as Mesopeplum (Borehamia) toaense (Marwick, 1928) † represented as Mesopeplum toaense (Marwick, 1928) † (original description)
Serripecten Marwick, 1928 † (original description)
Serripecten (Janupecten) Marwick, 1928 † accepted as Janupecten Marwick, 1928 † (original description)
Serripecten (Janupecten) polemicus Marwick, 1928 † accepted as Janupecten polemicus (Marwick, 1928) † (original description)
Serripecten tiorioriensis Marwick, 1928 † (original description)
Tawera marthae Marwick, 1928 † (original description)
Trivia flora Marwick, 1928 accepted as Trivia zealandica T. W. Kirk, 1882 accepted as Ellatrivia zealandica (T. W. Kirk, 1882) † (original description)