. . . "* Plesiotrochus nipponkaiense (Habe & Masuda, 1990)" . . . "Ittibittium parcum" . . . . . "* Cerithium hawaiensis (Pilsbry & Vanatta, 1905)" . "* Bittium parcum (Gould, 1861)" . "* Ittibittium nipponkaiense (Habe & Masuda, 1990)" . . . . . "Ittibittium parcum" .