- zebra Menke, 1829 = Austrocochlea constricta (family Trochidae – Trochinae)
- zebra Menke, 1829 = Austrocochlea porcata (family Trochidae – Trochinae)
- zeidleri Lamprell & Healy, 1998 = Laevidentalium zeidleri (family Laevidentaliidae)
- zelandicus Gray, 1843 = Pododesmus zelandicus (family Anomiidae – Placunanomiinae)
- zietzi Verco, 1905 = Calliostoma zietzi (family Calliostomatidae – Calliostomatinae)
- zonale Quoy & Gaimard, 1833 = Sinum zonale (family Naticidae – Sininae)
- zonalis Lamarck, 1818 = Gari livida (family Psammobiidae)
- zonata Tenison Woods, 1878 = Siphonaria tasmanica (family Siphonariidae)