Diastoma provisi Tate, 1894: 177 Ludbrook, 1957: 22 Ludbrook, 1971: 33 A checklist of Australian marine Cenozoic Mollusca Darragh, Thomas A. Memoirs of Museum Victoria 2024 2024-08-23 83 37 206 B7SFD Tate, 1894 Tate 1894 [817,1113,1482,1503] Gastropoda Diastomatidae Diastoma Animalia 17 54 Mollusca species provisi      Diastoma provisi Tate, 1894: 177, pl. 10, fig. 6.—  Ludbrook, 1957: 22, pl. 1, fig. 4; Ludbrook, 1969b: fig. 96.15;  Ludbrook, 1971: 33, pl. 1, figs 8–11.   Distribution. St Vincent Basin: Dry Creek Sands ( type).  Age: middle Miocene.