 Gelagna succincta (Linnaeus, 1771) |  Gutturnium muricinum (Röding, 1798) |  Gyrineum gyrinum (Linnaeus, 1758) |  Gyrineum lacunatum (Mighels, 1845) |  Gyrineum pusillum (Broderip, 1833) |  Linatella caudata (Gmelin, 1791) |  Monoplex aquatilis (Reeve, 1844) |  Monoplex aquatilis (Reeve, 1844) & pilearis (Linnaeus, 1758) |
 Monoplex comptus (A. Adams, 1855) |  Monoplex intermedius (Pease, 1869) |  Monoplex mundus (A. Gould, 1849) |  Monoplex nicobaricus (Röding, 1798) |  Monoplex parthenopeus (Salis Marschlins, 1793) |  Monoplex parthenopeus echo (Kuroda & T. Habe, 1959) |  Monoplex pilearis (Linnaeus, 1758) |  Monoplex pilearis (Linnaeus, 1758) & intermedius (Pease, 1869) & aquatilis (Reeve, 1844) |
 Ranularia pyrum (Linnaeus, 1758) |  Ranularia sarcostoma (Reeve, 1844) |  Sassia midwayensis (T. Habe & Okutani, 1968) |  Septa beui (Garcia-Talavera, 1985) |  Septa rubecula (Linnaeus, 1758) | | | |