Clavatula vitalisi Strausz 1955
Creators: name: Harzhauser, Mathias
name: Landau, Bernard
name: Janssen, Ronald
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Clavatulidae
Clavatula

description: ‘ Clavatula ’ vitalisi Strausz, 1955    
 Figs 14C 1 –C 2, 5, 6   
 * Clavatula interrupta vitalisi nov. f. — Strausz 1955: 202, pl. 12, figs 25–26.   
 Clavatula interrupta vitalisi Strausz, 1955 — Strausz 1966: 404, pl. 15, figs 2–3.   
 Clavatula interrupta vitalisi Strausz — Nicorici 1972: 69.   
 Clavatula vitalisi (Strausz, 1955) [sic]— Landau et al. 2013: 288.   
 Type material. Holotype: M.105, Várpalota (Hungary), SL: 57.8 mm, MD: 25.7 mm, illustrated in Strausz (1955, pl. 12, figs 25–26), stored in the Geological and Geophysical Institute of Hungary (Budapest), figs 14C 1 –C 2.   
 Revised description. Shell moderately large, stout biconic; apical angle 38°. Protoconch and earliest teleoconch whorls not preserved. Early teleoconch whorls flat-sided; sculpture abraded. Later whorls with moderate width, poorly delimited subsutural collar bearing low tubercles; concave mid-portion bearing comma-shaped axial riblets. Suprasutural cord with axially elongated tubercles. Entire shell surface covered by numerous secondary spiral cords also overriding tubercles. Dense spirals and prominent axial growth lines give surface slightly reticulated aspect. Suture narrowly incised, running below beads. Last whorl ~60% of total height. Subsutural collar of moderate width, weakly tubercular. Subsutural ramp narrow, concave. Shoulder inflated, delimited by row of axially elongated tubercles, mid-whorl weakly convex, weakly angled at base. Base moderately constricted, siphonal fasciole swollen, twisted; deep pseudoumbilicus. Sculpture below ramp of slightly strengthened tubercular shoulder cord, slightly strengthened peribasal and perifasciolar cords, with further cords of roughly alternate strength intercalated below shoulder. All cords faintly beaded. Aperture moderately wide, pyriform. Outer lip not thickened, smooth within. Anal sinus moderately wide and deep, symmetrically U-shaped, with apex mid-ramp. Siphonal canal moderately short, moderately narrow, deflected to left, unnotched. Columella excavated in upper third, straight below, smooth. Columellar and parietal callus strongly thickened, sharply delimited.   
 Discussion. ‘ Clavatula ’ vitalisi was established by Strausz (1955) as subspecies of Clavatula interrupta (Brocchi, 1814), but differs from that species distinctly in its stout biconic shape, the very prominent spiral cords and the short siphonal canal. Similarly, ‘ Clavatula ’ sophiae (Hoernes & Auinger, 1891) differs in its more slender shape, longer siphonal canal, wider anal canal and presence of lirae within the outer lip. The morphologically closest species in the Paratethys Sea is ‘ Clavatula ’ hirmetzli Kovács & Vicián, 2021, which has an even stouter outline.   
 Paleoenvironment. The assemblages from Várpalota (Hungary) suggest inner neritic sandy bottoms (Harzhauser et al. 2002).   
 Distribution in Central Paratethys. Badenian (middle Miocene): Pannonian Basin: Várpalota (Hungary) (Strausz 1966); Șimleu Basin: Tusa (Romania) (Nicorci 1972).
description: Published as part of Harzhauser, Mathias, Landau, Bernard & Janssen, Ronald, 2022, The Clavatulidae (Gastropoda, Conoidea) of the Miocene Paratethys Sea with considerations on fossil and extant Clavatulidae genera, pp. 1-172 in Zootaxa 5123 (1) on pages 38-39, DOI: 10.11646/zootaxa.5123.1.1, http://zenodo.org/record/6399827