Late Jurassic (Upper Kimmeridgian) Heterobranchia (Gastropoda) of the coral-facies of Saal near Kelheim and the viciniy of Nattheim (Germany) Author Gruendel, Joachim Institut fuer Geowissenschaften, Fachrichtung Palaeontologie, Freie Universitaet Berlin, Malteserstrasse 74 - 100, 12249 Berlin, Germany joachim.gruendel@lingua-pura.de Author Keupp, Helmut Institut fuer Geowissenschaften, Fachrichtung Palaeontologie, Freie Universitaet Berlin, Malteserstrasse 74 - 100, 12249 Berlin, Germany Author Lang, Fritz Drosselweg 16, 96114 Hirschaid, Germany Author Nuetzel, Alexander https://orcid.org/0000-0002-8852-7688 SNSB-Bayerische Staatssammlung fuer Palaeontologie und Geologie, Richard-Wagner-Str. 10, 80333 Muenchen, Germany & Department of Earth and Environmental Sciences, Paleontology and Geobiology, Ludwig-Maximilians-Universitaet Muenchen, Richard-Wagner-Str. 10, 80333 Muenchen, Germany text Zitteliana 2022 2022-12-12 96 179 221 http://dx.doi.org/10.3897/zitteliana.96.e84187 journal article http://dx.doi.org/10.3897/zitteliana.96.e84187 2747-8106-96-179 35B619086E6548B09A177281C2253391 FE0861D71BB454999EE6637C0D9B2B0C Nerinea Gen. et sp. indet. Plate 19: figs 9-11 Material. One specimen from Saal, collection Lang, SNSB-BSPG 2021 XV 92. Description. The shell fragment is 19 mm high. The whorls are relatively high. The whorl face is straight. The sutures are indistinct. The whorls are ornamented with a subsutural row of axially elongated, opisthocline knobs. Below it, the whorl face is ornamented with three spiral cords: a weak upper one, then a stronger one and again a weak spiral cord. All spiral cords are knobby. The size of the knobs corresponds to the strength of the spiral cords. The knobs of the bordering spiral cord emerge from the abapical suture. The bordering spiral cord is strong and marks the angular transition from whorl face to the weakly convex base. The base is ornamented with at least one distinct spiral cord and possibly with additional weaker ones. The growth lines are weakly prosocyrt on the base and almost straight orthocline on the whorl face. They curve strongly backward immediately below the adapical suture. The aperture is rhomboid and has a siphonal canal. Only a single strong parietal plait is visible. Relationships. Nerinea binodosa Etallon sensu Loriol in Loriol and Bourgeat (1886-1888 : pl. 9, fig. 6) is larger, the adapical knobs are prosocline, it lacks a distinct row of knobs below mid-whorl, the knobs on the bordering spiral are larger, less numerous, almost fully exposed above the abapical suture, and the base is covered with distinct spiral cords. Nerinea oppeli Gemmellaro, 1870 is larger, the knobs on the bordering spiral are larger, almost fully exposed above the abapical suture, and the subsutural knobs are smaller and not as distinctly elongated. Nerinea loreti nom. mut. sensu Cossmann (1898) has higher whorls, a concave whorl face, the subsutural knobs are smaller and not elongated, the knobs on the bordering spiral are larger and almost fully exposed above the abapical suture, and its whorl face is covered with numerous spiral cords.