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 : 144-145

Conus s.l. johannae Hoernes & Auinger, 1879

Figs 30 O, 34A1–A 4, 34I

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

Conus (Chelyconus) Johannae nov. form.— Hoernes & Auinger 1879: 40, pl. 1, fig. 4.

non Conus johannae R. Hoern. et Auing. — Eremija 1959: 187, pl. 1, figs 6-6a [maybe a subadult Monteiroconus antiquus ( Lamarck, 1810) or a Plagioconus species].

Type material. Syntype NHMW 1949 /0005/0003, illustrated in Hoernes & Auinger (1879, pl. 1, fig. 4) , syntype NHMW 1869 /0001/0332, all Steinebrunn ( Austria); middle Miocene , Badenian (late Langhian).

Studied material. Syntypes and 4 subadult spec. NHMW A458, all Steinebrunn ( Austria).

Illustrated material. Figs 30 O, 34A1–A4: Steinebrunn ( Austria): SL: 75.5 mm, MD: 38.9 mm, NHMW 1949/ 0005/0003, illustrated in Hoernes & Auinger (1879, pl. 1, fig. 4); Figs 34 I: Steinebrunn ( Austria), SL: 73.0 mm, MD: 38.6 mm, NHMW 1869/0001/0332.

Revised description. Moderately large, robust shells; mammillate spire regularly conical, elevated. Early spire whorls with tuberculate keel and distinct striae; later spire whorls convex, bulgy; only weakly striate with deep suture. Subsutural flexure shallow, moderately curved, moderately asymmetrical; subangulated middle spire whorls, rounded penultimate whorl; dense pattern of growth lines on spire. Last whorl with rounded shoulder, position of maximum diameter slightly below; last whorl slender, regularly conical, not constricted; aperture moderately narrow, broadening towards short, weakly recurved canal; fasciole weak, slightly twisted and not well demarcated from base. Last whorl covered by broad, indistinct spiral cords. Colour pattern under UV light consisting of flammulae on shoulder and spire whorls; last whorl with about 15 broad spirals of subquadratic blotches, coinciding with spiral cords.

Shell measurements and ratios. Only two adult specimens are available: SL: 75.5/73.0 mm, MD: 38.9/ 38.6 mm, spire angle: 91/97°, last whorl angle: 32/33°, LW:1.94/1.89, RD: 0.63/0.65, PMD: 0.88/0.93, RSH: 0.18/0.19.

Discussion. This rare species is highly reminiscent of Lautoconus subraristriatus (Pereira da Costa, 1866) in overall shape and size and could be easily confused with the widespread species. Nevertheless, the tuberculate keel and prominent striae on the early spire of C. johannae and its conspicuous colour pattern allow a clear separation. The colour pattern is unique within Paratethyan Conidae . The record of this species from the Croatian Karlovac- Glina Basin by Eremija (1959) is based on a misidentification.

Paleoenvironment. The co-occurring mollusc assemblage is indicative for shallow sublittoral enbvironments ( Sieber, 1958b).

Distribution in Paratethys. Badenian (middle Miocene): Vienna Basin: Steinebrunn ( Austria) ( Hoernes & Auinger 1879). The occurrence of this species in the Tortonian of Barcelona, mentioned by Faura I Sans (1908), needs confirmation.

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.