"Cerithium columellare (d'Orbigny, 1847)" . . "Bittiolum properatum (Woodring, 1928)" . . "Cerithium pallidum (Pfeiffer, 1840)" . . "Bittiolum varium" . . . "grass cerith" . . . "Cerithium gibberulum (C.B. Adams, 1845)" . "Bittium varium (Pfeiffer, 1840)" . "Cerithium triseriale (Gabb, 1881)" . . "Bittium varium" . "Cerithium varium (Pfeiffer, 1840)" . "Bittiolum varium" . . . . . . . . "Diastoma varium (Pfeiffer, 1840)" . .