Conus

Harzhauser, Mathias & Landau, Bernard, 2016, A revision of the Neogene Conidae and Conorbidae (Gastropoda) of the Paratethys Sea, Zootaxa 4210 (1), pp. 1-178 : 146-148

Conus s.l. praelongus Hoernes & Auinger, 1879

Figs 30 L, 34B1–B3, Figs 34 C1–C3, Figs 34 D1–D2

[ Chelyconus ] [ Conus ] praelongus n. f. — Hoernes 1878a: 195 (nomen nudum). Conus (Chelyconus) praelongus nov. form.— Hoernes & Auinger 1879: 45, pl. 1, fig. 16. Conus (Chelyconus) praelongus ( Hoernes und Auinger 1879)—Kojumdgieva in Kojumdgieva & Strachimirov 1960: 213, pl.

50, fig. 7.

non Conus (Chelyconus) praelongus Hoernes & Auinger—Atanacković 1969: 214 , pl. 13, figs 4–4b [maybe Conus s.l. olivaeformis Hoernes et Auinger, 1879 ].

non Conus (Chelyconus) praelongus ( Hoernes und Auinger 1879)— Atanacković 1985: 178, pl. 39, figs 16–17 [maybe Conus s.l. olivaeformis Hoernes et Auinger, 1879 ].

Type material. Syntype NHMW 1854 /0035/0034a, Lăpugiu de Sus ( Romania), illustrated in Hoernes & Auinger (1879, pl. 1, fig. 16), 10 syntypes NHMW 1854 /0035/0034, Lăpugiu de Sus ( Romania); middle Miocene, Badenian ( Langhian ).

Studied material. Syntypes.

Illustrated material. Figs 34 B1–B3: syntype, Lăpugiu de Sus ( Romania): SL: 44.9 mm, MD: 19.5 mm, NHMW 1854/0035/0034; Figs 30 L, 34C1–C3: syntype, Lăpugiu de Sus ( Romania): SL: 40.8 mm, MD: 17.5 mm, NHMW 1854/0035/0034a, illustrated in Hoernes & Auinger (1879, pl. 1, fig. 16); Figs 34 D1–D2: Lăpugiu de Sus ( Romania): SL: 32.3 mm, MD: 14.9 mm, NHMW 1854/0035/0034.

Revised description. Medium-sized olivoid shells; pointed apex with tuberculate early spire whorls; later spire whorls weakly convex to nearly flat, striate, forming a high, nearly straight-sided conical to weakly cyrtoconoid spire. Subsutural flexure shallow, moderately curved, moderately asymmetrical. Very indistinct shoulder coinciding with slight angulation and position of maximum diameter; last whorl moderately elongate, weakly ventricose, not constricted. Siphonal canal very short, moderately wide, straight; fasciole very weak and indistinct; few thin spiral threads on base. Colour pattern under UV light consisting of wide-spaced spirals of long dashes, intercalated by 1–2 weaker spirals of shorter dashes. If uppermost shell layer is eroded, these spirals are underlain by a dense pattern of spirals covering the entire shell.

Shell measurements and ratios. n = 11: largest specimen: SL: 44.9 mm, MD: 19.5 mm, mean SL: 33.7 mm (σ = 1.8), mean MD: 14.9 mm (σ = 2.6), spire angle: µ = 71.5° (σ = 3.1°), last whorl angle: µ = 33.8° (σ = 1.1°), LW: µ = 2.3 (σ = 0.1), RD: µ = 0.58 (σ = 0.03), PMD: µ = 0.87 (σ = 0.03), RSH: µ = 0.23 (σ = 0.03).

Discussion. The strong spiral pattern on the syntype illustrated by Hoernes & Auinger (1879) is somewhat misleading, as it represents a specimen with corroded uppermost shell layer. These spirals are just a colour pattern and do not represent a spiral sculpture as suggested by Halaváts (1884) and Strausz (1966). The stout, robust specimen with somewhat ventricose last whorl, illustrated by Atanacković (1969, 1985) as Conus praelongus , might represent another species. Lautoconus praelongus differs from the slightly similar Leporiconus suessi ( Hoernes & Auinger, 1879) , Leporiconus transsylvanicus ( Hoernes & Auinger, 1879) and Conus s.l. sturi Hoernes & Auinger, 1879 in its higher conical spire, shorter last whorl and lower position of the shoulder.

Paleoenvironment. No information.

Distribution in Paratethys. Badenian (middle Miocene): Eisenstadt-Sopron Basin: Forchtenau ( Austria) ( Sieber 1956); Transylvanian Basin: Lăpugiu de Sus ( Romania) ( Hoernes & Auinger 1879); Dacian Basin: Staropatica ( Bulgaria) ( Kojumdgieva & Strachimirov 1960).

Figures

FIGURE 34 A 1 – A 4. Conus s. l. johannae Hoernes & Auinger, 1879, Steinebrunn (Austria), NHMW 1949 / 0005 / 0003. 34 B 1 – B 3. Conus s. l. praelongus Hoernes & Auinger, 1879, Lăpugiu de Sus (Romania), NHMW 1854 / 0035 / 0034, syntype. 34 C 1 – C 3. Conus s. l. praelongus Hoernes & Auinger, 1879, Lăpugiu de Sus (Romania), 0 NHMW 1854 / 0035 / 0034 a, syntype. 34 D 1 – D 2. Conus s. l. praelongus Hoernes & Auinger, 1879, Lăpugiu de Sus (Romania), NHMW 1854 / 0035 / 0034. 34 E 1 – E 3. Conus s. l. posticestriatus Kojumdgieva in Kojumdgieva & Strachimirov, 1960, Lăpugiu de Sus (Romania), NHMW 1999 z 0077 / 0024. 34 F 1 – F 3. Conus s. l. posticestriatus Kojumdgieva in Kojumdgieva & Strachimirov, 1960, Lăpugiu de Sus (Romania), NHMW 1854 / 0035 / 0038, holotype. 34 G 1 – G 3. Conus s. l. sturi Hoernes & Auinger, 1879, Lăpugiu de Sus (Romania), NHMW 1854 / 0035 / 0043 b, syntype. 34 H 1 – H 3. Conus s. l. sturi Hoernes & Auinger, 1879, Lăpugiu de Sus (Romania), NHMW 1854 / 0035 / 0 0 47, syntype. 34 I. Conus s. l. johannae Hoernes & Auinger, 1879, Steinebrunn (Austria), NHMW 1869 / 0001 / 0332.