(1–3) Cossmannea desvoidyi (d’Orbigny, 1851). (1–2) collection Sauerborn, Nattheim area; (1) lateral view, height 23.8 cm; (2) last whorls with aperture, height 8 cm. (3) University Tübingen, collection Quenstedt), Nattheim, lateral view, height 130 mm (original of Quenstedt 1881–1884, pl. 205, 60). (4–6) Aptyxiella planata (Quenstedt, 1858), SNSB-BSPG 2021 XV 1, Nattheim–Rinderberg; (4–5) lateral views, height 70 mm; (6) aperture, height of detail 70 mm. (7) Aptyxiella quenstedti Geiger, 1901, Nattheim, lateral view (copy from Geiger 1901, pl. 11, fig. 1).