The onlyvaguely similar species is T. amphiderita (Fig. 11).The radula is characteristic for rock-dwellingspecies in Lake Towuti, though, and as suchshared e.g. by T. amphiderita (Fig. 12a, b) and T.sarasinorum (Fig. 49c, d).Tylomelania confusa new speciesEtymology: The name has been given to mark theconfusion caused by the mixing of two speciesincluding T. confusa in the type series of T.mahaloni