Exelissa ursicina

Exelissa ursicina (Loriol, 1889 in Loriol and Koby) Plate 9: figs 13, 14 2022 – Exelissa ursicina (De Loriol, 1889 in De Loriol and Koby) – Gründel, Hostettler and Menkveld-Gfeller: 50, pl. 7, figs 14–20, pl. 8, figs 1–5 (here more chresonymy and synonymy). Material. 1 specimen, SNSB-BSPG 2016 XXI 1836. Description. Shell high-spired, slender; specimen 10 mm high; sutures shallow but distinct; whorl face with approximately 7 strong, orthocline axial ribs which weaken on base; distance between axial ribs wider than axial ribs; 6–7 strong, spiral cords on whorl face; intersections of axial ribs and spiral cords without nodes; transition from whorl face to convex base evenly rounded; base covered with spiral cords that are slightly stronger than those on whorl face; aperture unknown. Remarks. According to Gründel et al. (2022), Exelissa ursicina from the Oxfordian is a variable species. The present specimen shows no clear differences to some variants of the Oxfordian species (see e. g., Loriol in Loriol and Koby 1889, Plate 8: figs 1–2, 5).