Lautoconus subraristriatus

Harzhauser, Mathias & Landau, Bernard, 2016, A revision of the Neogene Conidae and Conorbidae (Gastropoda) of the Paratethys Sea, Zootaxa 4210 (1), pp. 1-178 : 95-96

Lautoconus subraristriatus (Pereira da Costa, 1866)

Figs 17 I, 21G1–G3, 21H

Conus raristriatus Bell. et Mich. —Hörnes 1851: 28, pl. 3, figs 2a–c [non Conus raristriatus Bellardi & Michelotti, 1840 ].

Conus subraristriatus Costa—Pereira da Costa 1866: 15 (partim, pl. 4, figs. 7a, b only) [non figs 2–6 = Kalloconus berghausi ( Michelotti, 1847) ].

[ Chelyconus ] [ Conus ] Enzesfeldensis n. f.— Hoernes 1878a: 195 (nomen nudum).

Conus (Chelyconus) Enzesfeldensis nov. form.— Hoernes & Auinger 1879: 46 [nov. nom. pro Conus raristriatus in Hörnes 1851 , pl. 3, fig. 2].

? Conus (Dendroconus) subraristriatus Da Costa—Csepreghy-Meznerics 1956: 422, pl. 11, figs 1–2.

Conus (Chelyconus) enzesfeldensis Hoernes et Auinger—Csepreghy-Meznerics 1956: 420, pl. 3, fig. 9.

Conus (Chelyconus) enzesfeldensis Hoernes & Auinger, 1879 — Strausz 1966: 460, pl. 70, figs 2–9.

? Conus (Cleobula) subraristriatus Costa, 1866 — Strausz 1966: 465, pl. 61, figs 3–5.

Conus (Chelyconus) raristriatus Bellardi & Michelotti—Atanacković 1969: 215 , pl. 13, figs 2–2b.

Conus (Dendroconus) subraristriatus Da Costa—Csepreghy-Meznerics 1972: 34, pl. 17, figs 18–19.

Conus raristriatus Bellardi & Michelotti—Davoli 1972 : pl. 25, figs 2a–2b [non Conus raristriatus Bellardi & Michelotti, 1840 , specimen is from Vienna Basin].

Conus (Chelyconus) enzesfeldensis Hoernes & Auinger, 1879 — Atanacković 1985: 177, pl. 39, figs 14–15.

? Conus enzesfeldensis (Hoernes et Auinger) — Ionesi & Nicorici 1994: 62, pl. 5, figs 9–10.

Conus (Chelyconus) enzesfeldensis Hoernes & Auinger—Schultz 1998: 72 , pl. 29, fig. 8.

Varioconus enzesfeldensis (Hoernes et Auinger) — Kovács & Vicián 2013: 84, figs 3, 116–120.

non Conus (Dendroconus) subraristriatus da Costa—Hoernes & Auinger 1879: 23 , pl. 1, figs 20–22 [fig. 20 = Lautoconus eschewegi (Pereira da Costa, 1866), figs 21– 22 = Kalloconus berghausi ( Michelotti, 1847) ]. non Conus (Chelyconus) enzesfeldensis Hoernes et Auinger—Chira & Voia 2001: 156 , pl. 3, figs 3a–b [= Lautoconus pseudoponderosus (Glibert, 1952) ].

Type material. Lectotype designated by Landau et al. (2013): specimen illustrated in Pereira da Costa (1866, pl. 4, fig. 7); Cacela Basin ( Portugal) ; late Miocene, Tortonian. The type locality of Conus enzesfeldensis Hoernes & Auinger, 1879 , considered to be a junior synonym of L. subraristriatus , is the middle Miocene (Badenian) locality Enzesfeld in Austria.

Studied material. 4 spec NHMW 1853/0010/0004, 4 spec. NHMW 1853/0010/0006, 6 spec. NHMW A1610, including specimen illustrated in Schultz (1998, pl. 29, fig. 8.), all Enzesfeld ( Austria), 1 spec NHMW 1857 /0014/ 0 0 0 5, Steinebrunn ( Austria), 2 spec . NHMW A 992, Grund ( Austria).

Illustrated material. Figs 21 G1–G3: Enzesfeld ( Austria): SL: 57.9 mm, MD: 29.8 mm, NHMW 1853 /0010/ 0006a; Figs.21 H: Enzesfeld ( Austria), SL: 52.6 mm, MD: 27.9 mm, NHMW A1610; Fig . 17I: Enzesfeld ( Austria): SL: 48.7 mm, MD: 25.3 mm, NHMW 1853 /0010/0006b.

Revised description. Medium-sized, solid shells; spire of medium height, cyrtoconoid; spire whorls very weakly convex, smooth; subsutural flexure shallow, weakly curved, moderately asymmetrical; last whorl elongate, roundly shouldered, straight-sided, position of maximum diameter at shoulder; hardly constricted at base; bearing few weak, finely beaded spiral cords at the anterior end in some specimens; aperture straight, relatively narrow, widening slightly abapically; siphonal canal short, straight; siphonal fasciole rounded, relatively well-developed; colour pattern under UV light of widely spaced, narrow brownish dots and dashes, coalescing into straight spiral lines forming three continuous fluorescing bands, separating two narrow regions lacking pigmentation.

Shell measurements and ratios. n = 13: largest specimen: SL: 80.4 mm, MD: 39.4 mm, mean SL: 54.3 mm (σ = 9.2), mean MD: 28.1 mm (σ = 4.2), spire angle: µ = 92.6° (σ = 2.9°), last whorl angle: µ = 34.6° (σ = 1.0°), LW: µ = 1.9 (σ = 0.06), RD: µ = 0.63 (σ = 0.02), PMD: µ = 0.84 (σ = 0.03), RSH: µ = 0.18 (σ = 0.02).

Discussion. The status of this species was discussed in detail by Landau et al. (2013), who designated the specimen illustrated by Pereira da Costa (1866, pl. 4, fig. 7) as lectotype of L. subraristriatus , which is conspecific with Conus enzesfeldensis Hoernes & Auinger, 1879 .

Paleoenvironment. Typically found in shallow marine, sandy nearshore environments.

Distribution in Paratethys. Badenian (middle Miocene): Vienna Basin: Gainfarn, Enzesfeld, Bad Vöslau, Steinebrunn, Pötzleinsdorf ( Austria) ( Hoernes & Auinger 1879; Sieber 1958b); Alpine-Carpathian Foredeep: Grund ( Austria) ( Hoernes & Auinger 1879),? Bükk Mountains: Borsodbóta ( Hungary) ( Csepreghy-Meznerics 1972); Pannonian Basin: Szob, Letkés ( Hungary) ( Kovács & Vicián 2013); southern Pannonian Basin: Miljevići ( Bosnia and Herzegovina) ( Atanacković 1985); Transylvanian Basin: Nemeşeşti, Lăpugiu de Sus, Coşteiu de Sus, Bujtur ( Romania) ( Hoernes & Auinger 1879);? Buzău Basin: Valea Muscel ( Romania) ( Ionesi & Nicorici 1994).

Proto-Mediterranean Sea and northeastern Atlantic. Serravallian: Karman Basin ( Turkey) ( Landau e t al. 2013); Tortonian: Cacela Velha, Cacela Basin ( Portugal) (Pereira da Costa, 1866).

Figures

FIGURE 21 A 1 – A 3. Lautoconus rotundus (Hoernes & Auinger, 1879), Steinebrunn (Austria), NHMW 1858 / 0015 / 0072, syntype. 21 B 1 – B 3. Lautoconus steinabrunnensis (Sacco, 1893), Grinzing (Austria), NHMW 1865 / 0001 / 0764. 21 C 1 – C 3. Lautoconus steinabrunnensis (Sacco, 1893), Steinebrunn (Austria), holotype, NHMW 1855 / 0045 / 0005. 21 D 1 – D 3. Lautoconus steinabrunnensis (Sacco, 1893), Lăpugiu de Sus (Romania), NHMW 1854 / 0035 / 0037. 21 E 1 – E 3. Lautoconus steindachneri (Hoernes, 1879), Bad Vöslau (Austria), NHMW 1949 / 0005 / 0004. 21 F 1 – F 3. Lautoconus steindachneri (Hoernes, 1879), Bad Vöslau (Austria), NHMW 1997 z 0178 / 1179. 21 G 1 – G 3. Lautoconus subraristriatus (Pereira da Costa, 1866), Enzesfeld (Austria), NHMW 1853 / 0010 / 0006 a. 21 H. Lautoconus subraristriatus (Pereira da Costa, 1866), Enzesfeld (Austria), NHMW A 1610.