• Zu Walters & Fitch, 1960
• Zu cristatus (Bonelli, 1819)
• Zu elongatus Heemstra & Kannemeyer, 1984
• Zua W. Turton, 1831 accepted as Cochlicopa A. Férussac, 1821
• Zua (Gomphroa) Westerlund, 1903 accepted as Gomphroa Westerlund, 1903
• Zua allixi Cossmann, 1907 † accepted as Cochlicopa allixi (Cossmann, 1907) †
• Zua boissii Dupuy, 1851 accepted as Gomphroa boissii (Dupuy, 1851)
• Zua brevis Michaud, 1862 † accepted as Cochlicopa brevis (Michaud, 1862) †
• Zua buddii Dupuy, 1849 accepted as Cochlicopa lubrica (O. F. Müller, 1774)
• Zua cylindrica Locard, 1894 accepted as Hypnophila boissii (Dupuy, 1851) accepted as Gomphroa boissii (Dupuy, 1851)
• Zua davidia Ancey, 1882 accepted as Cochlicopa davidia (Ancey, 1882)
• Zua davidis [sic] accepted as Cochlicopa davidia (Ancey, 1882)
• Zua dupuyana Locard, 1894 accepted as Hypnophila boissii (Dupuy, 1851) accepted as Gomphroa boissii (Dupuy, 1851)
• Zua exigua Menke, 1830 (unaccepted > nomen nudum)
• Zua exigua var. cylindroides Pollonera, 1888 † (uncertain > taxon inquirendum)
• Zua laevissima Michaud, 1862 † accepted as Cochlicopa laevissima (Michaud, 1862) †
• Zua locardi Pollonera, 1885 accepted as Cochlicopa lubrica (O. F. Müller, 1774)
• Zua lubrica (O. F. Müller, 1774) accepted as Cochlicopa lubrica (O. F. Müller, 1774)
• Zua lubrica f. lacteola Lindholm, 1911 accepted as Cochlicopa lubricella (Porro, 1838)
• Zua lubrica var. olivea Locard, 1880 (uncertain > taxon inquirendum)
• Zua petraea Locard, 1894 † accepted as Truncatella subcylindrica (Linnaeus, 1767)
• Zua praecursor Locard, 1894 † accepted as Truncatella subcylindrica (Linnaeus, 1767)
• Zua pulchella Mousson, 1856 accepted as Cochlicopa lubricella (Porro, 1838)
• Zua sinensis Heude, 1890 accepted as Cochlicopa sinensis (Heude, 1890)
• Zua thalassina Jousseaume, 1890 accepted as Cochlicopa thalassina (Jousseaume, 1890)
• Zuccarelloa D'Archino & W.A.Nelson, 2017
• Zuccarelloa ceramoides (Levring) D'Archino & W.A.Nelson, 2017
• Zuccaria Marcus, 1948 accepted as Polycystis Kölliker, 1845
• Zuccaria fredelyna Marcus, 1948 accepted as Paulodora fredelyna (Marcus, 1948) Artois & Schockaert, 1998
• Zuccaria gabriellae Marcus, 1948 accepted as Polycystis gabriellae (Marcus, 1948) Karling, 1952
• Zucleica Leach, 1852 † accepted as Clausinella J. E. Gray, 1851
• Zudanezina Pribyl, 1984 †
• Zuella Kadolsky, 2020 †
• Zuella venusta Kadolsky, 2020 †
• Zuffardia Checchia-Rispoli, 1917 †
• Zuffardia cerullii Checchia-Rispoli, 1933 †
• Zugmayerella Dagys, 1963 †
• Zugmayerella taringaturaensis Campbell, 1991 †
• Zugmayeriidae Dagys, 1963 †
• Zuidae Bourguignat, 1884 accepted as Cochlicopidae Pilsbry, 1900 (1879)
• Zulanthura Poore, 1980 accepted as Accalathura Barnard, 1925
• Zulanthura laevitelson (Kensley, 1975) accepted as Accalathura laevitelson (Kensley, 1975)
• Zulialana Botosaneanu & Viloria, 1993
• Zulialana coalescens Botosaneanu & Viloria, 1993
• Zullinius Andrássy, 1984 accepted as Odontopharynx de Man, 1912
• Zullinius vanbezooijeni (Zullini & Loof, 1980) Andrássy, 1984 accepted as Odontopharynx vanbezooijeni Zullini & Loof, 1980
• Zulloa Ross & Newman, 1996
• Zulloa imperialensis Ross & Newman, 1996
• Zulloana Pitombo & Ross, 2002
• Zulloana straeleni (Zullo & Beach, 1973)
• Zullobalanus Buckeridge, 1989 †
• Zullobalanus australiae (Buckeridge, 1983) †
• Zullobalanus australiae australiae (Buckeridge, 1983) †
• Zullobalanus australiae victoriae Buckeridge, 1983 †
• Zullobalanus cudmorei (Buckeridge, 1983) †
• Zullobalanus everetti (Buckeridge, 1983) †
• Zullobalanus novozelandicus (Buckeridge, 1983) †
• Zullobalanus santamariaensis Winkelmann, Buckeridge, Costa, Dioniso, Medeiros, Cachao & Avila, 2010 †
• Zulloconcavus Carriol, 2000 †
• Zulloconcavus miosensis Carrioll, 2001 †
• Zulloia Petuch, 1994 †
• Zulloia violetae Petuch, 1994 †
• Zulloia zulloi Petuch, 1994 †
• Zulustylis Muasya
• Zulustylis hygrophila (Gordon-Gray) Muasya
• Zulustylis variegata (Gordon-Gray) Muasya
• Zulutrigonia M. R. Cooper, 1990 †
• Zulutrigonia dacquei M. R. Cooper, 2023 †
• Zulutrigonia kikombona (Aitken, 1961) †
• Zulutrigonia krenkeli (E. Lange, 1914) †
• Zulutrigonia picteti (Coquand, 1863) † accepted as Valenciella picteti (Coquand, 1863) †
• Zulutrigonia pongolensis (Rennie, 1936) †
• Zumoffenia Fourtau, 1912 † accepted as Pseudananchys Pomel, 1883 †
• Zungaro Bleeker, 1858
• Zungaro humboldtii Bleeker, 1858 accepted as Zungaro zungaro (Humboldt, 1821)
• Zungaro jahu (Ihering, 1898)
• Zungaro luetkeni (Steindachner, 1876) accepted as Zungaro zungaro (Humboldt, 1821)
• Zungaro zungaro (Humboldt, 1821)
• Zungaro zungaro schultzi Dahl, 1955 accepted as Pseudopimelodus schultzi (Dahl, 1955)
• Zungaropsis Steindachner, 1908
• Zungaropsis multimaculatus Steindachner, 1908
• Zunongwangia Qin, Zhao, Wang, Chen, Dang, Li, Zhang & Gao, 2007
• Zunongwangia profunda Qin, Zhao, Wang, Chen, Dang, Li, Zhang & Gao, 2007
• Zuojiangia Zheng, He, Yang & Wu, 2018
• Zuojiangia jingxiensis Zheng, He, Yang & Wu, 2018
• Zuphanusa Leach, 1830 (uncertain > nomen dubium)
• Zuphanusa smithiana Leach, 1830 (uncertain > nomen dubium)
• Zurama W. Turton, 1831 accepted as Circinaria H. Beck, 1837 accepted as Vallonia Risso, 1826
• Zuzalpheus Ríos & Duffy, 2007 accepted as Synalpheus Spence Bate, 1888
• Zuzalpheus dardeaui Ríos & Duffy, 2007 accepted as Synalpheus dardeaui (Ríos & Duffy, 2007)
• Zuzalpheus elizabethae Ríos & Duffy, 2007 accepted as Synalpheus elizabethae (Ríos & Duffy, 2007)
• Zuzalpheus idios Ríos & Duffy, 2007 accepted as Synalpheus idios (Ríos & Duffy, 2007)
• Zuzalpheus kensleyi Ríos & Duffy, 2007 accepted as Synalpheus kensleyi (Ríos & Duffy, 2007)
• Zuzalpheus ul Ríos & Duffy, 2007 accepted as Synalpheus ul (Ríos & Duffy, 2007)
• Zuzalpheus yano Ríos & Duffy, 2007 accepted as Synalpheus yano (Ríos & Duffy, 2007)
• Zuzanella Zágorsek, 2001 †
• Zuzanella kovaci Zágorsek, 2001 †
• Zuzanella tomashi Zágorsek, 2001 †
• Zuzara Leach, 1818
• Zuzara (Exosphaeroma) Stebbing, 1900 accepted as Exosphaeroma Stebbing, 1900