Kalloconus pseudohungaricus

Harzhauser, Mathias & Landau, Bernard, 2016, A revision of the Neogene Conidae and Conorbidae (Gastropoda) of the Paratethys Sea, Zootaxa 4210 (1), pp. 1-178 : 69

publication ID	https://doi.org/ 10.11646/zootaxa.4210.1.1
publication LSID	lsid:zoobank.org:pub:D39416B8-CF85-440B-84C2-D4380BECC4E3
DOI	https://doi.org/10.5281/zenodo.5622329
persistent identifier	https://treatment.plazi.org/id/373F87D7-FFDB-FFCA-FF5F-A8E1FA0B4762
treatment provided by	Plazi
scientific name	Kalloconus pseudohungaricus
status

Treatment

Kalloconus pseudohungaricus nov. sp.

Figs 3 R, 13C1–C4, 13D, 13E1–E3, 13F1–F2

Conus (Lithoconus) Hungaricus nov. form.— Hoernes & Auinger 1879: 29 (partim) [non Kalloconus hungaricus ( Hoernes & Auinger, 1879) ].

Holotype: Figs 13 View FIGURE 13 E1–E3: SL: 55.2 mm, MD: 38.4 mm, NHMW 1868/0001/0380b.

Paratype: Figs 13 View FIGURE 13 C1–C4: SL: 49.4 mm, MD: 34.5 mm, NHMW 1868/0001/0380a.

Paratype: Figs 13 View FIGURE 13 D: SL: 53.2 mm, MD: 35.4 mm, NHMW 1868/0001/0380d.

Paratype: Figs 13 View FIGURE 13 F1–F2, 3R: SL: 49.9 mm, MD: 35.9 mm, NHMW 1868/0001/0380c.

Additional paratypes: 2 specimens, NHMW 1868 View Materials /0001/0380, all specimens from Lăpugiu de Sus ( Romania).

Type stratum: Badenian marly-clayey deposits with thin interlayers of sand and corallinacean limestones.

Type locality: Lăpugiu de Sus ( Romania).

Age: Middle Miocene, early Badenian (= Langhian).

Etymology: Referring to Kalloconus hungaricus with which this species was mixed by Hoernes & Auinger (1879).

Description. Robust, medium-sized shells; spire depressed and conical with low coeloconoid early whorls. Spire whorls nearly flat, smooth; last spire whorl forming a very shallow concavity close to the prominent, subangulate shoulder. Suture narrow but deeply incised. Subsutural flexure deep, strongly curved, strongly asymmetrical. Last whorl rapidly contracting, straight sided; position of maximum diameter close below shoulder. Lower third of last whorl with weak spiral grooves. Aperture narrow, with subparallel margins, only weakly broadening towards siphonal canal. Siphonal fasciole weak; siphonal canal moderately long, weakly reflected. Highly variable colour pattern consisting of broad flammulae on spire whorls and spirally arranged rows of small to moderately large subquadrate blotches on last whorl; delicate spirals of small dots may be intercalated; large blotches are indistinct.

Shell measurements and ratios. n = 6: largest specimen: SL: 55.2 mm, MD: 38.4 mm, mean SL: 52.4 mm (σ = 2.3), mean MD: 35.6 mm (σ = 1.5), spire angle: µ = 134.7° (σ = 6.4°), last whorl angle: µ = 40.5° (σ = 0.6°), LW: µ = 1.47 (σ = 0.06), RD: µ = 0.74 (σ = 0.02), PMD: µ = 0.90 (σ = 0.01), RSH: µ = 0.08 (σ = 0.03).

Paleoenvironment. Unknown; maybe offshore environments as represented by the clays of the type locality.

Discussion. The specimens from Lăpugiu de Sus ( Romania) were mixed by Hoernes & Auinger (1879) with Kalloconus hungaricus from which they differ in their straight-sided, conical last whorl and the narrower shoulder. In addition, the conspicuous colour pattern is unknown from K. hungaricus .

Conus trigonulus Grateloup, 1835 , from the early Miocene of the Aquitaine Basin, is superficially similar but differs in its angulate shoulder and angulate adapical aperture. Conus parvicaudatus Sacco, 1893 , from the Burdigalian of the Turin Hills, develops a comparable colour pattern but differs in its angulate shoulder and deep constriction of the last whorl. Kalloconus tietzei ( Hoernes & Auinger, 1879) is very close in overall outline but differs in its coeloconoid spire, the twisted siphonal fasciole, the wider siphonal canal and the conspicuous colour pattern of numerous narrow dashes.

Distribution in Paratethys. Badenian (middle Miocene): Transylvanian Basin: Lăpugiu de Sus ( Romania).