Achaetina Malloch, 1918 (original description)
Algamorda Dall, 1918 accepted as Littorina Férussac, 1822 (original description)
Algaroda Dall, 1918 accepted as Littorina Férussac, 1822 (original description)
Ambo Chamberlin, 1918 accepted as Timarete Kinberg, 1866 (original description)
Amphigonopterus Hubbs, 1918 accepted as Micrometrus Gibbons, 1854 (original description)
Ariciella Malloch, 1918 (original description)
Atopetholus Chamberlin, 1918 (original description)
Atrimitra Dall, 1918 (original description)
Boetica Dall, 1918 accepted as Lacuna Turton, 1827 (original description)
Boreomelon Dall, 1918 accepted as Arctomelon Dall, 1915 (original description)
Celebesia Riley, 1918 (original description)
Coracornis Riley, 1918 (original description)
Crawfordia Dall, 1918 accepted as Crawfordina Dall, 1919 (original description)
Elachisina Dall, 1918 (original description)
Eremomyioides Malloch, 1918 (original description)
Georgichthys Nichols, 1918 accepted as Sarcocheilichthys Bleeker, 1860 (original description)
Hesperolus Chamberlin, 1918 (original description)
Hiltonius Chamberlin, 1918 (original description)
Iselica Dall, 1918 (original description)
Kurtziella Dall, 1918 (original description)
Littorivaga Dall, 1918 accepted as Littorina Férussac, 1822 (original description)
Notorchilus Oberholser, 1918 (original description)
Phenacoptygma Dall, 1918 accepted as Exilia Conrad, 1860 (original description)
Progabbia Dall, 1918 accepted as Cancellaria Lamarck, 1799 (original description)
Provanna Dall, 1918 (original description)
Pseudophaonia Malloch, 1918 (original description)
Telonaca Ball, 1918 (original description)
Tocichthys Hubbs, 1918 accepted as Hyperprosopon Gibbons, 1854 (original description)
Tromina Dall, 1918 (original description)