Calipyrgula hibbardi A. B. Leonard & Franzen, 1944 † accepted as Tryonia hibbardi (A. B. Leonard & Franzen, 1944) † (original description)
Calipyrgula senta A. B. Leonard & Franzen, 1944 † accepted as Pyrgophorus hibbardi (A. B. Leonard & Franzen, 1944) † accepted as Tryonia hibbardi (A. B. Leonard & Franzen, 1944) † (original description)
Calipyrgula tumida A. B. Leonard & Franzen, 1944 † accepted as Pyrgophorus hibbardi (A. B. Leonard & Franzen, 1944) † accepted as Tryonia hibbardi (A. B. Leonard & Franzen, 1944) † (original description)
Calipyrgula turricula A. B. Leonard & Franzen, 1944 † accepted as Pyrgophorus hibbardi (A. B. Leonard & Franzen, 1944) † accepted as Tryonia hibbardi (A. B. Leonard & Franzen, 1944) † (original description)
Ferrissia angustus A. B. Leonard & Franzen, 1944 † (original description)
Ferrissia depressus A. B. Leonard & Franzen, 1944 † (original description)
Helisoma goodrichi A. B. Leonard & Franzen, 1944 † accepted as Biomphalaria goodrichi (A. B. Leonard & Franzen, 1944) † (original description)
Helisoma parallelum A. B. Leonard & Franzen, 1944 † (original description)
Helisoma valens A. B. Leonard & Franzen, 1944 † accepted as Planorbella valens (A. B. Leonard & Franzen, 1944) † (original description)
Lymnaea lavernensis A. B. Leonard & Franzen, 1944 † accepted as Bulimnea megasoma (Say, 1824) (original description)