Acanthochites Risso, 1826 accepted as Acanthochitona Gray, 1821 (original description)
Acicula Risso, 1826 (original description)
Aenone Risso, 1826 (original description)
Alvania Risso, 1826 (original description)
Anna Risso, 1826 (original description)
Arctoe Risso, 1826 accepted as Dosinia Scopoli, 1777 (original description)
Arctoë Risso, 1826 accepted as Arctoe Risso, 1826 accepted as Dosinia Scopoli, 1777 (original description)
Barnea Risso, 1826 (original description)
Bolma Risso, 1826 (original description)
Busiris Risso, 1826 accepted as Notarchus Cuvier, 1816 (original description)
Cantareus Risso, 1826 (original description)
Crenea Risso, 1826 (original description)
Cyclope Risso, 1826 accepted as Tritia Risso, 1826 (original description)
Duvaucelia Risso, 1826 (original description)
Eidothea Risso, 1826 accepted as Philinopsis Pease, 1860 (original description)
Erato Risso, 1826 (original description)
Ethalion Risso, 1826 (original description)
Eunomia Risso, 1826 (original description)
Fidelis Risso, 1826 accepted as Truncatella Risso, 1826 (original description)
Fimbria Risso, 1826 (original description)
Gibbula Risso, 1826 (original description)
Halia Risso, 1829 accepted as Ampulla Röding, 1798 (original description)
Hygromia Risso, 1826 (original description)
Jaminia Risso, 1826 (original description)
Leachia Risso, 1826 accepted as Hydrobia Hartmann, 1821 (original description)
Lembulus Risso, 1826 (original description)
Lementina Risso, 1826 accepted as Thylacodes Guettard, 1770 (original description)
Lemintina Risso, 1826 (original description)
Lepidopleurus Risso, 1826 (original description)
Mactrula Risso, 1826 (original description)
Mangelia Risso, 1826 (original description)
Mitrella Risso, 1826 (original description)
Nacca Risso, 1826 accepted as Natica Scopoli, 1777 (original description)
Nanina Risso, 1826 accepted as Cyclope Risso, 1826 accepted as Tritia Risso, 1826 (original description)
Nesaea Risso, 1826 accepted as Chauvetia Monterosato, 1884 (original description)
Neverita Risso, 1826 (original description)
Niso Risso, 1826 (original description)
Orbitina Risso, 1826 (original description)
Oris Risso, 1826 (original description)
Otavia Risso, 1826 accepted as Clanculus Montfort, 1810 (original description)
Pegea Risso, 1826 (original description)
Phorcus Risso, 1826 (original description)
Phyza Risso, 1826 accepted as Physa Draparnaud, 1801 (original description)
Policere Risso, 1826 accepted as Polycera Cuvier, 1816 (original description)
Polinoe Risso, 1826 (original description)
Protula Risso, 1826 (original description)
Rumina Risso, 1826 (original description)
Saraphia Risso, 1826 (original description)
Speo Risso, 1826 (original description)
Taras Risso, 1826 (original description)
Theba Risso, 1826 (original description)
Tricolia Risso, 1826 (original description)
Tritia Risso, 1826 (original description)
Truncatella Risso, 1826 (original description)
Turbonilla Risso, 1826 (original description)
Vaginula Risso, 1826 accepted as Vaginulina d'Orbigny, 1826 (original description)
Vallonia Risso, 1826 (original description)
Vediantius Risso, 1826 (original description)
Zothea Risso, 1826 (original description)