Tethynices plicatulaeformis ( Kittl, 1887 ), 2025

Tethynices plicatulaeformis ( Kittl, 1887) nov. comb.

Figs 55A–B View FIGURE 55

Natica helicina Brocc.—Hörnes 1856: 525 View in CoL ( pars) [ non Euspira helicina ( Brocchi, 1814) View in CoL ].

* Natica plicatulaeformis n. f. — Kittl 1887: 257, pl. 8, figs 23–24.

Pliconacca plicatulaeformis ( Kittl, 1887) — Robba et al. 2016: 193, pl. 12, figs 12/7–8 [not 9–11 = Tethynices prohelicina ( Sacco, 1891) ].

Type material. Lectotype (designated by Robba et al. 2016: 193), NHMW 1888/0001/0025a, SL: 13.7 mm, MD: 13.7 mm, Orlová ( Czech Republic), illustrated in Kittl (1887, pl. 8, fig. 24), Figs 55B View FIGURE 55 1 –B View FIGURE 1 4 View FIGURE 4 . Paralectotype, NHMW 1888/0001/0025b, SL: 11.9 mm, MD: 11.4 mm, Orlová ( Czech Republic), illustrated in Kittl (1887, pl. 8, fig. 23), Figs 55A View FIGURE 55 1 –A View FIGURE 1 4 View FIGURE 4 .

Revised description. Small, globose, solid shell of ~4.5 teleoconch whorls; as high as wide ( SL /MD = 1.0). Protoconch low turbiniform, of about two moderately convex whorls, poorly preserved. Spire moderately elevated, broad conical with strongly convex whorls; apical angle 100–115°. Suture linear, narrow, deeply incised. Teleoconch whorls with narrow subsutural ramp and faint shoulder angulation. Last whorl weakly expanding, attaining ~90–94% of total height, slightly less convex below shoulder, strongly and regularly convex at periphery and base. Periphery placed mid-whorl (~51%). Growth lines very prominent on subsutural ramp, delimiting broad, flat prosocyrt plicae in apical view. Periphery smooth. Aperture ovate D-shaped, prosocline. Position of adapical tip of aperture moderately low (~80%), above mid-whorl, distinctly below shoulder. Aperture attaining ~70–75% of total height. Columellar lip and basal lip reinforced, outer lip thin. Columellar angle ~30°. Opercular ridge in outer lip unknown. Umbilicus narrow (~10%), moderately deep with weak growth lines. Parietal callus long (~56%), markedly thickened, not expanding over base, with concave margin. Anterior lobe of parietal callus thickened, forming short tongue-like extension. No funicle visible. Umbilical callus narrowly trigonal umbilical callus, fused with anterior lobe, occasionally delimited from anterior lobe by weak transverse groove Basal fasciole rounded with weak growth lines. Color pattern not preserved.

Discussion. See discussion for Tethynices .

Paleoenvironment. The assemblage from Orlová ( Czech Republic) suggests offshore environments with muddy bottoms (own data M.H.).

Distribution in Central Paratethys. Badenian (Middle Miocene): Carpathian Foreland Basin: Orlová, Doubrava u Orlové, Ostrava ( Czech Republic) ( Kittl 1887).

Genus Neverita Risso, 1826

Type species. Neverita josephinia Risso, 1826 View in CoL , by monotypy ( Risso 1826: 149). Present-day, Mediterranean Sea.