Strioterebrum borianum
Creators: name: Harzhauser, Mathias
name: Landau, Bernard M.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Terebridae
Strioterebrum
Strioterebrum borianum

description: Strioterebrum borianum (Švagrovský, 1982)
Figs 15A–C, 3E
Terebra (Strioterebrum) basteroti [sic] Nyst—Kojumdgieva in Kojumdgieva & Strachimirov 1960: 217, pl. 51, fig. 9 [non Strioterebrum basterotii (Nyst, 1845)].
? Terebra neglecta Michelotti — Răileanu & Negulescu 1964: 188, pl. 15, fig. 6 [non Terebra neglecta Michelotti, 1847].
Terebra (Strioterebrum) basteroti [sic] Nyst— Hinculov 1968: 153, pl. 39, figs 1–2 [non Strioterebrum basterotii (Nyst, 1845)].
? Terebra (Myurella) basteroti [sic] Nyst, 1845 — Steininger 1973: 447.
? Terebra (Strioterebrum) basteroti [sic] Nyst, 1843— Nicorici & Sagatovici 1973: 174, pl. 26, fig. 7 [non Strioterebrum basterotii (Nyst, 1845)].
Strioterebrum (Strioterebrum) basteroti [sic] (Nyst)— Davoli 1977: 152, pl. 2, fig. 2.
* Terebra (Terebra) bistriata boriana ssp. n. — Švagrovský 1982: 407, pl. 7, fig. 4.
Terebra (Strioterebrum) basteroti [sic] Nyst, 1843— Švagrovský 1982: 408, pl. 6, figs 3–4 [non Strioterebrum basterotii (Nyst, 1845)].
Strioterebrum (Strioterebrum) basteroti [sic] (Nyst)— Ruggieri & Davoli 1984: 74, pl. 14, figs 15a–b.
Strioterebrum (Strioterebrum) basteroti [sic] (Nyst, 1843)— Bałuk 1997: 66, pl. 25, figs 1–3 [non Strioterebrum basterotii (Nyst, 1845)].
Strioterebrum (Strioterebrum) basteroti [sic] (Nyst, 1843)— Davoli 2003: 457, pl. 2, figs 7, 10, 12 [non Strioterebrum basterotii (Nyst, 1845)].
non Terebra Basteroti [sic] Nyst— Hörnes 1852: 132, pl. 11, fig. 28 [= Maculauger sophiae (Hoernes & Auinger 1880)].
non Terebra (Strioterebrum) basteroti [sic] Nyst, 1845 — Caze et al. 2010: 34, text-fig. 5H [= Maculauger sophiae (Halaváts, 1884)].
non Strioterebrum basteroti [sic] (Nyst, 1843)— Caprotti 2011: 70, figs 9A–B [= Terebra sp. according to Brunetti et al. 2012: 105)]
non Strioterebrum basteroti [sic] (Nyst, 1843)— Popa et al. 2014: 18, pl. 5, fig. 11 [= Strioterebrum volhynianum (d’Orbigny, 1852)].
Type material. Holotype, Institute for Geology and Paleontology, PFUK, Bratislava, illustrated in Švagrovský 1982: pl. 7, fig. 4, Borský Mikuláš (Czech Republic).
Illustrated material. NHMW 2023/0299/0001, SL: 21.6 mm, MD: 4.4 mm, CoŞteiu de Sus (Romania), Figs 15A 1 –A 2. NHMW 2023/0300/0001, SL: 24.3 mm, MD: 5.8 mm, Gainfarn (Austria), Figs 15B 1 –B 2. NHMW 2023/0300/0002, SL: 25.3 mm, MD: 5.4 mm, Gainfarn (Austria), Figs 15C 1 –C 2. NHMW 2023/0300/0003, Gainfarn (Austria), Fig. 3E.
Additional material. 1 spec., NHMW 1868 /0001/0163, Vienna / Pötzleinsdorf (Austria); 4 spec., NHMW 2013 /0300/0408, Baden-Sooss (Austria); 36 spec., NHMW 2010 /0004/1094, Bad Vöslau (Austria); 2 spec., NHMW 2010 /0004/1095, Bad Vöslau (Austria); 6 spec., NHMW 2010 /0004/1096, Bad Vöslau (Austria); 2 spec., NHMW 1871 /0011/0009, Steinebrunn (Austria); 9 spec., NHMW 1861 /0001/0241, Pöls (Austria); 7 spec., A1546, Forchtenau (Austria); 1 spec., NHMW 2006 z0317/0017, Gainfarn (Austria); 19 spec., NHMW 1997 z0178/1849, Gainfarn (Austria); 4 spec., NHMW 2006 z0316/0049, Gainfarn (Austria); 3 spec., NHMW 2012 /0132/0029, Gainfarn (Austria); 16 spec., NHMW 2013 /0479/1415, Gainfarn (Austria); 10 spec., NHMW 2013 /0479/1416, Gainfarn (Austria); 1 spec., NHMW 2013 /0479/1417, Gainfarn (Austria); 25 spec., NHMW 2013 /0479/1414, Gainfarn (Austria); 48 spec., NHMW 2013 /0479/1413, Gainfarn (Austria); 4 spec., NHMW 1847 /0046/0012, Szob (Hungary); 8 spec., NHMW 1861 /0050/0045a, Hrušovany nad Jevišovkou (Czech Republic).
Revised description. Medium sized, slender conical shell of up to 13 teleoconch whorls; apical angle ~20°.
Protoconch high, of 3.75 smooth, convex whorls. Early teleoconch whorls conical, slightly convex with prominent, close set axial ribs. Subsutural band prominent with moderately delimited beads. Later whorls subcylindrical, flat sided to weakly convex, forming weakly gradate spire. Prominent subsutural band bearing moderately delimited subquadratic tubercles. Spiral groove distinctly incised, occasionally forming punctations. Axial ribs prominent, broad, slightly trigonal, separated by wide interspaces. Delicate spiral threads may occur between axial ribs. Last whorl moderately high, ~30% of total height. subcylindrical or weakly convex with rounded basal angulation. Fasciole prominent, broad, adapically delimited by prominent carina.Aperture moderately narrow.Columella weakly twisted, excavated in adapical half. Columellar callus thin, indistinct. No columellar fold. Anal canal indistinctly incised. Outer lip narrow; basal lip moderately wide. Siphonal canal twisted, relatively short, moderately narrow.
Discussion. Strioterebrum borianum has been confused with Strioterebrum basterotii (Nyst, 1845) by most authors and both species are indeed very similar. Strioterebrum basterotii differs from S. borianum in its broader conical outline, less gradate spire and longer siphonal canal (see A.W. Janssen 1984: pl. 13, fig. 8, pl. 77, figs 1–2 and Wienrich 2006: pl. 116, fig. 6, pl. 156, figs 1–3 for S. basterotii from the Middle Miocene of the North Sea Basin). The protoconch of both species is identical and does not allow a separation [note that Wienrich (2006) described the protoconch of Strioterebrum basterotii to consist of 4.5 to 5 whorls, but he seems to have counted the whorls differently]. Strioterebrum borianum was also mixed with specimens of Strioterebrum volhynianum (d’Orbigny, 1852) in the collection of the NHMW. Strioterebrum volhynianum differs in its higher spire and more prominent spiral sculpture.
Paleoenvironment. The occurrence at Gainfarn and Steinebrunn (Austria) suggests coastal, inner neritic settings with sea grass (Zuschin et al. 2007).
Distribution in Central Paratethys.? Eggenburgian (Early Miocene): Petroşeni Basin: Sălătrue (Romania) (Răileanu & Negulescu 1964);? Ottnangian (Early Miocene): North Alpine-Carpathian Foreland Basin: Gerner-Graben, Kaltenbach-Graben (Germany (Steininger et al. 1971). Badenian (Middle Miocene): Korytnica Basin: Korytnica (Poland) (Bałuk 1997); North Alpine-Carpathian Foreland Basin: Hrušovany nad Jevišovkou (Czech Republic) (hoc opus); Vienna Basin: Borský Mikuláš (Czech Republic) (Švagrovský 1982), Baden-Sooss, Bad Vöslau, Gainfarn, Steinebrunn, Vienna /Pötzleinsdorf (Austria) (hoc opus); Styrian Basin: Pöls (Austria) (hoc opus); Eisenstadt-Sopron Basin: Forchtenau (Austria) (hoc opus); Pannonian Basin: Szob (Hungary) (hoc opus); Făget Basin: Bujtur, CoŞteiu de Sus, Lăpugiu de Sus (Romania); Zârand Basin: MiniŞul de Sus (Romania) (Nicorici & Sagatovici 1973); Caransebeş-Mehadia Basin: Valea Bela Reca (Romania) (Hinculov 1968); Dacian Basin: Târnene (Bulgaria) (Kojumdgieva in Kojumdgieva & Strachimirov 1960).
Proto-Mediterranean Sea. Tortonian (Late Miocene): Po Basin: Montegibbio, Sogliano (Italy) (Ruggieri & Davoli 1984; Davoli 1977); Messinian (Late Miocene): Colli Torinesi: Borelli (Italy) (Davoli 2003).
description: Published as part of Harzhauser, Mathias & Landau, Bernard M., 2023, The auger snails (Gastropoda, Conoidea, Terebridae) of the Miocene Paratethys Sea, pp. 1-70 in Zootaxa 5385 (1) on pages 33-35, DOI: 10.11646/zootaxa.5385.1.1, http://zenodo.org/record/10376252