Euthria brunettii, Harzhauser & Landau, 2024

Harzhauser, Mathias & Landau, Bernard M., 2024, The Colubrariidae, Eosiphonidae, Melongenidae, Pisaniidae, Prodotiidae and Tudiclidae (Gastropoda, Buccinoidea) of the Miocene Paratethys Sea, Zootaxa 5427 (1), pp. 1-110 : 65-67

publication ID	https://doi.org/ 10.11646/zootaxa.5427.1.1
publication LSID	lsid:zoobank.org:pub:923206B0-E8C5-4FD5-B882-55009ABB0282
persistent identifier	https://treatment.plazi.org/id/03CE9F1C-FFDA-0C05-FF65-FD5FEF10FEC6
treatment provided by	Plazi
scientific name	Euthria brunettii
status	sp. nov.

Treatment

Euthria brunettii nov. sp.

Figs 33A–F View FIGURE 33 , 34A View FIGURE 34

Fusus (Euthria) aduncus Bronn —Hoernes & Auinger 1890: 259, pl. 31, figs 5–8 [non Euthria adunca ( Bronn, 1831) View in CoL ]. Euthria adunca (Bronn) View in CoL — Boettger 1906: 33 [non Euthria adunca ( Bronn, 1831) View in CoL ].

E [uthria]. (E [uthria].) adunca (Bronn) View in CoL — Sieber 1958: 150 [non Euthria adunca ( Bronn, 1831) View in CoL ].

Euthria (Euthria) adunca ( Bronn, 1831) View in CoL — Nikolov 1994: 53, pl. 2, figs 9–10 [non Euthria adunca ( Bronn, 1831) View in CoL ].

Euthria adunca ( Bronn, 1831) View in CoL — Bałuk 1995: 243, pl. 34, fig. 7 [non Euthria adunca ( Bronn, 1831) View in CoL ].

Euthria adunca ( Bronn, 1831) View in CoL — Kovács 2022: 72, figs 24–25 [non Euthria adunca ( Bronn, 1831) View in CoL ].

non Euthria adunca ( Bronn, 1831) View in CoL — Kovács & Vicián 2023: 253, fig. 13A [= Euthria frausseni nov. sp.].

Type material. Holotype: NHMW 2023 View Materials /0341/0001, SL: 48.3 mm, MD: 19.5 mm, Vienna /Grinzing ( Austria), illustrated in Hoernes & Auinger (1890: pl. 31, fig. 5), Figs 33A View FIGURE 33 1 –A View FIGURE 1 2 View FIGURE 2 . Paratypes: NHMW 1854 View Materials /0035/0207a, SL: 51.6 mm , MD: 21.9 mm, Lăpugiu de Sus ( Romania), illustrated in Hoernes & Auinger (1890: pl. 31, fig. 6), Figs 33B View FIGURE 33 1 –B View FIGURE 1 2 View FIGURE 2 . NHMW 1854 View Materials /0035/0207b, SL: 53.7 mm , MD: 24.1 mm, Lăpugiu de Sus ( Romania), illustrated in Hoernes & Auinger (1890: pl. 31, fig. 7), Figs 33C View FIGURE 33 1 –C View FIGURE 1 2 View FIGURE 2 . NHMW 1854 View Materials /0035/0207c, SL: 29.4 mm , MD: 12.7 mm, Lăpugiu de Sus ( Romania), illustrated in Hoernes & Auinger (1890: pl. 31, fig. 8), Figs 33D View FIGURE 33 1 –D View FIGURE 1 2 View FIGURE 2 . NHMW 2023 View Materials /0338/0005, SL: 44.6 mm , MD: 19.7 mm, Lăpugiu de Sus ( Romania), Figs 33F View FIGURE 33 1 –F View FIGURE 1 2 View FIGURE 2 . NHMW 2023 View Materials /0338/0006, SL: 48.8 mm , MD: 19.8 mm, Lăpugiu de Sus ( Romania), Figs 33E View FIGURE 33 1 –E View FIGURE 1 2 View FIGURE 2 . NHMW 2023 View Materials /0338/0007, SL: 21.3 mm , MD: 9.5 mm, Lăpugiu de Sus ( Romania), Figs 34A View FIGURE 34 .

Additional material. 17 spec., NHMW 1863 View Materials /0015/0181, Lăpugiu de Sus ( Romania) ; 7 spec., NHMW 1874 View Materials /0035/0041, Lăpugiu de Sus ( Romania) ; 11 spec., NHMW 1854 View Materials /0035/0212, Lăpugiu de Sus ( Romania) ; 14 spec., NHMW 1865 View Materials /0001/0677, Jaroměřice ( Czech Republic) .

Type locality. Vienna / Grinzing ( Austria), Vienna Basin .

Type stratum. Silty clay of the Baden Formation.

Age. Middle Miocene, early/middle Badenian (Langhian).

Etymology. In honor of Mauro Brunetti ( Spain), in recognition of his contributions to Neogene Mediterranean malacology.

Diagnosis. Medium-sized, slender fusiform shell with convex whorls, weak subsutural concavity, multispiral protoconch of 2.7 whorls, axial ribs well developed, broad, rounded, persisting in most specimens to end of penultimate or last whorl, spiral sculpture weak, siphonal canal long, small denticles, occasionally lirae within.

Description. Medium-sized, slender fusiform shell of up to seven teleoconch whorls; apical angle 50–55°. Protoconch high conical of 2.7 smooth, convex whorls; diameter: 950 μm, height: 1050 μm. Transition to teleoconch marked by onset of prominent, widely spaced axial ribs overrun by four prominent spiral cords. Secondary spiral cords appear intercalated on second teleoconch whorl. Later spire whorls convex, with weak subsutural collar, narrow concave subsutural ramp, convex below, separated by shallowly undulating, incised suture. Axial ribs on early whorls very prominent, broad, subobsolete over subsutural ramp, around 12–14 weakening rapidly on penultimate whorl, overrun by prominent spiral cords of primary strength, with slightly weaker secondaries and numerous tertiary threads intercalated on first four teleoconch whorls; axials weaken abapically; spirals fading out on penultimate and last whorls except for broad spiral cords over base and fasciole. Last whorl attaining 65– 75% of total height, with narrow concave subsutural ramp, strongly convex mid-whorl, strongly constricted below, fasciole weakly swollen with moderately prominent growth lines. Aperture moderately wide, pyriform. Columella broadly excavated, distinctly angled at transition to siphonal canal; angulation often accentuated by small denticle. Columellar callus forming thin, sharply delimited, moderately broad rim, bearing four to five denticles weakening adapically, subobsolete in many specimens; callus thinning in parietal area, not sharply delimited. Anal canal accentuated by small parietal denticle and broader, low anal denticle on outer lip. Outer lip attached below periphery with sharp peristome and variable number of typically short lirae slightly behind aperture, although specimens with subobsolete to long lirae extending deep within aperture occur. Siphonal canal long, narrow, slightly deflected and recurved, shallowly notched.

Discussion. Euthria brunettii nov. sp. displays some variability concerning the height of the last spire whorl (compare figs 33A and 33C). This species was confused with the Mediterranean Euthria adunca ( Bronn, 1831) , which is similar in shape and sculpture, but differs in its paucispiral protoconch of two whorls with a large, convex first whorl and blunt top (see Brunetti & Della Bella 2016: fig. 5F). Pliocene specimens of E. adunca differ also in their more prominent and persisting spiral sculpture (see Bellardi 1873: pl. 13, fig. 20; Malatesta 1974: pl. 25, fig. 4; Chirli 2000: pl. 20, figs 14–15; Brunetti & Della Bella 2016: figs 5A–F). Euthria praecedens Sacco, 1904 , from the Burdigalian of the Colli Torinesi ( Italy), differs in the less constricted base and the weaker axial sculpture (see Brunetti & Della Bella 2016: fig. 6A).

Paleoenvironment. Unknown; the locality Vienna /Grinzing comprises species of inner neritic environments.

Distribution in Central Paratethys. Badenian (Middle Miocene): Korytnica Basin: Korytnica ( Poland) ( Bałuk 1995); North Alpine Foreland Basin: Jaroměřice ( Czech Republic) (Hoernes & Auinger 1890); Vienna Basin: Vienna/Grinzing (Hoernes & Auinger 1890); Făget Basin: Lăpugiu de Sus, CoŞteiu de Sus ( Romania) ( Kovács 2022); Dacian Basin: Jasen, Opanec ( Bulgaria) ( Nikolov 1994).