Olegia brigittae Harzhauser & Landau & Janssen 2022, nov. comb.
Creators: name: Harzhauser, Mathias
name: Landau, Bernard
name: Janssen, Ronald
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Phylloxeridae
Olegia
Olegia brigittae

description: Olegia brigittae (Hoernes & Auinger, 1891) nov. comb.   
 Figs 25A 1 –A 3, 1B 1 –B 3, 5, 6   
 Clavatula Brigittae —Hoernes 1891: 129 [nomen nudum].   
 * Pleurotoma (Clavatula) Brigittae nov. form.— Hoernes & Auinger 1891: 336, pl. 46, figs 8–9.   
 ? [Pleurotoma] (Clavatula) Brigittae R. Hörn. & Auinger — Schafarzik 1903: 47   
 C [lavatula]. (C [lavatula]) brigittae (R. Hörn. et Au.) — Sieber 1958a: 156.   
 non Clavatula doderleini brigittae Hoernes & Auinger, 1892 — Strausz 1966: 410, pl. 16, fig. 15, pl. 17, fig. 1 [= Olegia mandici nov. sp.].   
 Type material. Lectotype designated herein: NHMW 2021 /0144/0001, SL: 17.6 mm, MD: 8.0 mm, Lysice (the Czech Republic), illustrated in Hoernes & Auinger (1891, pl. 46, fig. 8), figs 25A 1 –A 3. Paralectotype: NHMW 2021 /0145/0001, Niederleis (Austria), SL: 22.7 mm, MD: 9.4 mm, illustrated in Hoernes & Auinger (1891, pl. 46, fig. 9, figs 25B 1 –B 3.   
 Revised description. Shell small to medium-sized, solid, broad fusiform, with gradate spire; apical angle ~50°. Protoconch not preserved. Teleoconch of at least eight whorls (earliest whorls not preserved). Early teleoconch whorls conical, flat-sided with broad smooth subsutural spiral cord and beaded suprasutural cord, separated by weak concavity. Later whorls subcylindrical; broad, rounded subsutural collar with wide-spaced, poorly defined tubercles, slightly concave, smooth mid-portion, prominent, opisthocline to slightly sigmoidal suprasutural row of tubercles. Suture deeply impressed, weakly undulating. Last whorl 60% of total height. Broad subsutural collar bearing 12–14 indistinct tubercles. Narrow, weakly concave subsutural ramp. Shoulder hardly developed, delimited by row of low, opisthocline, axially elongated tubercles. Almost straight-sided mid-whorl portion bearing subobsolete tubercles. Base weakly constricted. Siphonal fasciole indistinct, rounded, twisted with prominent growth increments. Very weak, irregular spiral cords at mid-whorl and base. Aperture moderately wide, ovate. Outer lip not thickened, smooth within. Anal sinus moderately deep and wide, asymmetrically U-shaped, with apex mid-ramp. Siphonal canal moderately long, narrow. Columella weakly excavated in upper third, straight below, smooth. Columellar and parietal callus adherent, thin, forming indistinct rim.   
 Discussion. As already recognized by Hoernes & Auinger (1891), Olegia brigittae (Hoernes & Auinger, 1891) is very close to Olegia baccifera (Bellardi, 1877) from the Tortonian of Stazzano (Italy) (see holotype in Bellardi 1877: 166, pl. 5, fig. 29 and Ferrero Mortara et al. 1981: 76, pl. 14, figs 1a–b). A separation of both species is based on the more conical spire of O. baccifera and the more prominent, but less numerous nodes along the abapical suture, and the well-defined nodes on the basal and peribasal cords.   
 The specimen described by Strausz (1966) from the Pannonian Basin as Clavatula brigittae has spiny nodes, opisthocline axial riblets on early teleoconch whorls and fewer nodes along the abapical suture and is described herein as Olegia mandici nov. sp.   
 Paleoenvironment. At the Niederleis section, sediment and fossils from coastal and lagoonal environments not exceeding 30 m water depth were transported by tempestites into offshore settings (Mandic et al. 2002). No information is available for the Lysice section.   
 Distribution in Central Paratethys. Badenian (middle Miocene): Alpine-Carpathian Foreland Basin: Lysice (the Czech Republic); Vienna Basin: Niederleis (Austria) (Hoernes & Auinger 1891). A further occurrence was mentioned by Schafarzik (1903) from Budapest (Hungary), but we have not seen this material to verify the identification.
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 79-80, DOI: 10.11646/zootaxa.5123.1.1, http://zenodo.org/record/6399827