(1, 2) Wallowiella (Plicaropsis) cancellata (Stahl, 1824) (juvenile), SNSB–BSPG 2016 XXI 1774, abapertural and apertural views, width 10 mm. (3, 4) Wallowiella (Plicaropsis) compacta Gründel, Keupp & Lang, 2015, SNSB–BSPG 2016 XXI 1775 (collection Lang), lateral and axial views, width 17 mm. (5–7) Wallowiella (Plicaropsis) compacta Gründel, Keupp & Lang, 2015, c SNSB–BSPG 2016 XXI 1776, abapertural and apertural views, width 18 mm. (8–10) Hayamiella subvaricosa (Brösamlen, 1909), SNSB–BSPG 2016 XXI 1777, abapertural, apertural and apical views, width 18 mm. (11, 12) Hayamiella? sp., SNSB–BSPG 2016 XXI 1778, abapertural and apical views, width 11 mm.