Itieroptygmatis cylindrata Grundel, Keupp, Lang & Nutzel 2022

Itieroptygmatis cylindrata Gründel, Keupp, Lang & Nützel, 2022 Plate 14: figs 12, 13 2022 Itieroptygmatis cylindrata n. sp. – Gründel, Keupp, Lang and Nützel: 207, pl. 18, figs 1–14 Material. Morphotype 1: 53 specimens (Saal: 48 specimens; locality 1985, above coral stock, level 2 (“ Fundort 1985, über Korallenstock, Sohle 2 ”): 5 specimens. Morphotype 2, Saal: 32 specimens, illustrated specimen SNSB-BSPG 2016 XXI 1929. Remarks. Two morphotypes assigned to this species were described by Gründel et al. (2022). The extremes in this morphological spectrum differ greatly from each another. However, there are also specimens that are difficult to assign to one of the two morphotypes. As outlined previously, it is undecided whether a variable species or two separate species are present, mainly due the poor preservation of the material at hand. A well-preserved juvenile specimen (shell height 24 mm; Plate 14: fig. 12, 13) of morphotype 2 shows the plait structure: 2 columellar plaits (the adapical one is significantly weaker than the abapical one) and a strong parietal plait. Palatal plaits are not noticeable.