Episcomitra bouei ( Hoernes & Auinger 1880 ) Harzhauser & Landau, 2021

Harzhauser, Mathias & Landau, Bernard, 2021, The Mitridae (Gastropoda: Neogastropoda) of the Miocene Paratethys Sea, Zootaxa 4983 (3), pp. 1-72 : 10-11

publication ID

https://doi.org/ 10.11646/zootaxa.4983.1.1

publication LSID

lsid:zoobank.org:pub:6A4778D6-195A-4AB1-AA1E-7D8000185B28

DOI

https://doi.org/10.5281/zenodo.5044161

persistent identifier

https://treatment.plazi.org/id/A82A87E9-8A1F-3847-FF4D-F9ADFA52FC41

treatment provided by

Plazi (2021-06-10 00:51:57, last updated 2024-11-24 21:02:59)

scientific name

Episcomitra bouei ( Hoernes & Auinger 1880 )
status

comb. nov.

Episcomitra bouei ( Hoernes & Auinger 1880) View in CoL nov. comb.

Figs 3C View FIGURE 3 1 –C View FIGURE 1 2 View FIGURE 2

[ Mitra ] Bouéi nov. form.—Hoernes 1880: 125 [nomen nudum].

* Mitra Bouéi nov. form.— Hoernes & Auinger 1880 (pars): 79, pl. 9, figs 6a–b [non figs 7a–b = Episcomitra pseudoincognita nov. sp.].

Mitra (Mitra) bouei Hö. Au. View in CoL — Boettger 1906: 7.

Mitra (Tiara) bouei ( Hoernes & Auinger, 1880) View in CoL — Atanacković 1985: 161, pl. 36, figs 7–8.

non Mitra Bouei R. Hoern. View in CoL i Auinger— Friedberg 1911: 14, pl. 1, fig. 7 [= Episcomitra pseudoincognita View in CoL nov. sp.].

non Mitraria (Mitraria) bouei ( Hoernes & Auinger, 1880) — Bałuk 1997: 29, pl. 8, figs 7–8.

Type material. Lectotype (designated herein): NHMW 1854 View Materials /0035/0100d, 16.4 mm, MD: 6.1 mm, Lăpugiu de Sus ( Romania), illustrated in Hoernes & Auinger (1880, pl. 9, figs 6a–b), figs 3C 1 –C 2.

Revised description. Shell small, moderately broad ovoid with cyrtoconoid spire and weakly impressed suture. Protoconch unknown. Teleoconch of six whorls. First two teleoconch whorls weakly convex with five convex, wide-spaced spiral cords. Spiral cords weakening on subsequent whorls, number of cords increasing to 13 on penultimate whorl by intercalation of secondary spiral threads. Last whorl high, ovoid, moderately constricted with shallow basal concavity. Periphery of last whorl coinciding with adapical tip of aperture. Mode of spiral sculpture changing from delicate densely spaced flattish spiral cords to widely spaced, crest-like spiral cords below periphery. Aperture moderately narrow. Columellar callus narrow, sharply delimited from adapical columellar fold to tip of siphonal canal. Columella with four oblique columellar folds, weakening abapically. Outer lip thin. Siphonal canal moderately short, moderately wide, straight with shallow siphonal notch.

Shell measurements and ratios. SL = 16.4 mm, MD: 6.1 mm; AA = 47°, SL/ MD: 2.7, AL/AW: 5.2, AH/S: 2.6.

Discussion. Hoernes & Auinger (1880) illustrated two syntypes, which in our opinion are not conspecific. To clarify the status of the species, we select the specimen from Lăpugiu de Sus ( Romania), illustrated by Hoernes & Auinger (1880, pl. 9, fig. 6), as lectotype of Episcomitra bouei , and exclude the specimen from Jerutek at Lysice ( Czech Republic) (1880, pl. 9, fig. 7), described herein as Episcomitra pseudoincognita nov. sp.

Episcomitra facilis (Mayer, 1890) , which co-occurs with E. bouei at Lăpugiu de Sus ( Romania), differs in its more ovoid profile, the coarser spiral sculpture and weakly canaliculate suture.

Palaeoenvironment. Unknown.

Distribution in Central Paratethys. Badenian (middle Miocene): Făget Basin: Lăpugiu de Sus ( Romania) ( Hoernes & Auinger 1880); Southern Pannonian Basin: Hrvaćani ( Bosnia and Herzegovina) ( Atanacković 1985).

Atanackovic, M. A. (1985) Mekusci Morskog Miocena Bosne. Geologija Bosne I Hercegovine, Fosilna Fauna I Flora, 1, 1 - 308.

Baluk, W. (1997) Middle Miocene (Badenian) gastropods from Korytnica, Poland; Part III. Acta Geologica Polonica, 47, 1 - 75. [https: // geojournals. pgi. gov. pl / agp / article / view / 13688 / 12126]

Boettger, O. (1906) Zur Kenntnis der Fauna der mittelmiocanen Schichten von Kostej im Krasso-Szorenyer Komitat. Gasteropoden und Anneliden III. Verhandlungen und Mitteilungen des Siebenburgischen Vereins fur Naturwissenschaften zu Hermannstadt, 54, 1 - 99. [https: // www. biodiversitylibrary. org / item / 108176 # page / 59 / mode / 1 up]

Friedberg, W. (1911, 1928) Mieczaki Miocenskie ziem Polskich. (Mollusca Miocaenica Poloniae). Czesc I. Slimaki i Lodkonogi (Pars I. Gastropoda et Scaphopoda). Muzeum Imienia Dzieduszyckich We Lwowie, 1 & 5, 1 - 112, pls. 1 - 5 (1911) & 441 - 631, pls. 27 - 38 (1928). [reprinted 1951 - 55 with slightly different title and pagination, Wydawnictwa Geologiczne, Warszawa, http: // rcin. org. pl / miiz / dlibra / publication / 4792 / edition / 29890 / content]

Hoernes, R. & Auinger, M. (1880) Die Gasteropoden der Meeres-Ablagerungen der ersten und zweiten Miocanen Mediterran- Stufe in der Osterreichisch-Ungarischen Monarchie. Abhandlungen der k. k Geologischen Reichsanstalt, 12, 53 - 112, pls. 7 - 12. [https: // opac. geologie. ac. at / ais 312 / dokumente / Hoernes % 20 und % 20 Auinger % 20 _ 1879 _ Gasteropoden. pdf] https: // doi. org / 10.5962 / bhl. title. 151405

Gallery Image

FIGURE 1. A. Map of central and south–eastern Europe, representing the area that was partly covered by the Central Paratethys Sea (for detailed maps with the localities mentioned in the text see Kroh (2005) and Nosowska (2020). The white insert corresponds to the area that is restored in the palaeogeographic map below. B. Palaeogeography of the Middle Miocene Paratethys Sea (modified from Harzhauser & Landau 2017) showing the most important sedimentary basins (NAFB: North Alpine Foreland Basin, E–Sopr B: Eisenstadt–Sopron Basin).

Gallery Image

FIGURE 2. Measurements for shell morphology and whorl profiles. SL: shell length, MD: maximum diameter, AA: apical angle, LWH: last whorl height, AH: aperture height. AL: aperture length. AW: aperture width. S: length of siphonal canal.

Gallery Image

FIGURE 3. A1–A2. Episcomitra antibellardii nov. sp., holotype, Lăpugiu de Sus (Romania), NHMW 1854/0035/0100b. B1–B2. Episcomitra antibellardii nov. sp., paratype, NHMW 1854/0035/0100c. C1–C2. Episcomitra bouei (Hoernes & Auinger 1880), lectotype, Lăpugiu de Sus (Romania), NHMW 1854/0035/0100d. D1–D2. Episcomitra cochlearella (Mayer-Eymar, 1890), lectotype, Lăpugiu de Sus (Romania), NMB Inv. Nr. t3238). E1–E2. Episcomitra cochlearella (Mayer-Eymar, 1890), paralectotype, Lăpugiu de Sus (Romania), NMB Inv. Nr. t3238. F1–F2. Episcomitra facilis (Mayer-Eymar, 1890), holotype, Lăpugiu de Sus (Romania), Inv. Nr. t3308. G1–G2. Episcomitra hilberi (Hoernes & Auinger 1880), paralectotype, Lăpugiu de Sus (Romania), NHMW 1854/0035/0100. H1–H2. Episcomitra hilberi (Hoernes & Auinger 1880), lectotype, Jerutek at Lysice (Czech Republic), NHMW 1865/0015/0014. I1–I2. Episcomitra pilsbryi (Boettger, 1906), holotype, Coşteiu de Sus (Romania), SFM 360347 (= SFM XII 12.2207a).

MD

Museum Donaueschingen

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Neogastropoda

SuperFamily

Mitroidea

Family

Mitridae

SubFamily

Mitrinae

Genus

Episcomitra