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 Eunerinea sp. nov. 1 Plate 16: figs 10-13 Material. Three certain and a questionable specimen from the Nattheim area (all from the collection Sauerborn). Description. A specimen is 120 mm high. The shell is very slender, needle-shaped. The shell has a pronounced bulge at the suture that is formed by two neighbouring whorls. The suture lies on this bulge. The whorl face is distinctly concave between the bulges where it is entirely covered with numerous weak spiral cords. Details of this ornament cannot be recognized because of insufficient preservation. The base is flat with an angular transition to the whorl face. The aperture is damaged in all specimens; it probably has a rhomboid outline and a distinct siphonal canal, a columellar plait that forms the adapical border of the canal, and a parietal plait. Remarks. The illustrated specimen of Nerinea terebra Schuebler sensu Goldfuss (1844) derives from Nattheim and could be identical with Eunerinea sp. nov. 1. The lack of spiral ornament in the specimen illustrated by Goldfuss (1844) and the lack of a palatal plait in Eunerinea sp. nov. 1 could be due to preservation. Nerinea terebra as described by Schuebler (in Zieten 1830: pl. 36, fig. 3) is, however, not identical with the specimen figured by Goldfuss (1844): its shell is much broader, it has lower whorls and only a single, strong parietal plait in the aperture. Relationships. Nerinea contorta Buvignier sensu Cossmann (1898) is even slenderer, has higher whorls, and its whorl face is more concave. Its whorl face is ornamented with four strong spiral cords and weaker ones between them. Nerinella bononiensis Loriol sensu Cossmann (1898) is somewhat less slender, its whorls are higher and the suture is not situated on the bulge. Aptyxiella cottaldina d'Orbigny sensu Cossmann (1898) has lower whorls and it lacks plaits in the aperture. Nerinea contorta Buvignier var. sesostris Krumbeck sensu Delpey (1939) has higher whorls, its whorl face is more concave, and it lacks distinct plaits.