FAMILIA OVULIDAE
Aclyvolva lanceolata (Sowerby,1848)
Pellasimnia brunneiterma (Cate,1969)

Aperiovula adriatica (Sowerby,1828)

Phenacovolva angasi (Reeve,1865)

Calpurnus lacteus (Lamarck,1810)

Phenacovolva dancei (Cate,1973) 1 | 2
Calpurnus verrucosus (Linné,1758)

Phenacovolva gracilis (Adams & Reeve,1848)

Contrasimnia xanthochila (Kuroda,1928)
Phenacovolva improcera (Azuma & Cate,1971)
Cuspivolva formosa (Sowerby,1848) 1 | 2 | 3

Phenacovolva longirostrata (Sowerby,1828)

Cymbovula deflexa (Sowerby,1848)
Phenacovolva rosea (Adams,1854) 1 | 2 | 3 | 4

Cyphoma gibbosum (Linné,1758)

Phenacovolva schmidti (Fehse & Wiese,1993)
Cyphoma intermedium (Sowerby,1828)
Phenacovolva subreflexa (Adams & Reeve,1848)
Cyphoma signata (Pilsbry & McGinty,1939)
Phenacovolva tokioi (Cate,1973)
Dentiovula horai (Cardin,1994)

Primovula striatula (Sowerby,1828) 1 | 2 | 3 | 4

Diminovula culmen (Cate,1973)

Prionovolva brevis (Sowerby,1828)

Diminovula whitworthi (Cate,1973)
Prionovolva pudica wilsoniana (Cate,1973)
Hiatavolva rugosa (Cate & Azuma,1973)

Prosimnia piriei (Petuch,1973)

Jenneria pustulata (Lightfoot,1786)
Prosimnia semperi draconis (Cate,1973)
Margovula bimaculata (Adams,1854)
Prosimnia semperi semperi (Weinkauff,1881) 1 | 2 | 3
Margovula pyriformis (Sowerby,1828)
Pseudosimnia carnea (Poiret,1789)

Neosimnia spelta (Linné,1758)

Pseudosimnia sinensis (Sowerby,1874)
Neosimnia vidleri (Sowerby,1881)

Simnia nicaeensis (Risso,1826)

Ovula costellata (Lamarck,1810)

Volva habei (Oyama,1961) 1 | 2 | 3

Ovula ovum (Linné,1758) 1 | 2 | 3

Volva sowerbyana (Weinkauff,1881) 1 | 2

Pedicularia californica (Newcomb,1864)

Volva volva (Linné,1758) 1 | 2