Takashius kantori Harzhauser & Landau & Vermeij 2024, nov. sp.
Creators: name: Harzhauser, Mathias
name: Landau, Bernard M.
name: Vermeij, Geerat J.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Fasciolariidae
Takashius
Takashius kantori

description: Takashius kantori nov. sp.   
 Figs 27F 1 –F 2   
 Type material. Holotype: NHMW 1870 /0033/0102, SL: 31.1 mm, MD: 13.6 mm, Lăpugiu de Sus (Romania), Figs 27F 1 –F 2.   
 Type locality. Lăpugiu de Sus (Romania), Făget Basin.   
 Type stratum. Silt and clay of the Dej Formation.   
 Age. Middle Miocene, early/middle Badenian (Langhian).   
 Etymology. In honor of Yuri I. Kantor (Russian Academy of Sciences, Moscow, Russian Federation), in recognition of his contributions to malacology.   
 Diagnosis. Medium-sized, slender fusiform shell with conical spire and long siphonal canal, convex whorls with very prominent, strongly raised axial ribs separated by wide interspaces, overrun by prominent spiral cords, axial ribs roughly axially aligned, columella with three weak folds abapically, outer lip strongly thickened by terminal varix, delicately lirate within.   
 Description. Medium-sized, slender fusiform shell of eight teleoconch whorls; apical angle 35°. Protoconch poorly preserved, conical of>2 moderately convex whorls, diameter 1100 μm. Last protoconch whorl with prominent axial riblets. Early teleoconch whorls weakly convex with periphery close above deeply incised suture. Sculpture of three prominent spiral cords overrunning prominent, widely spaced axial ribs. Later teleoconch whorls evenly convex with deeply incised, strongly undulating suture. Sculpture of about five secondary spiral cords on narrow subsutural ramp, three primary spiral cords below, two slightly more prominent secondary cords close to adapical primary cord, fourth weaker primary cord just above abapical suture; interspaces between primaries with one fine secondary cord flanked by a single tertiary thread on either side; spiral sculpture overrunning very prominent, strongly raised axial ribs, separated by wider, relatively flattened interspaces; axial ribs roughly aligned axially; six ribs on penultimate whorl; spiral cords swollen over ribs. Last whorl high, attaining 63% of total height, strongly convex with six axial ribs; base strongly constricted; base and siphonal canal with prominent primary spiral cords with 2–4 secondaries intercalated.Aperture narrowly pyriform. Columellar callus adherent. Columella excavated in upper third, with three weak columellar folds; slightly twisted at transition to siphonal canal. Anal canal indistinct. Outer lip strongly thickened by terminal varix, with ten delicate lirae close behind peristome, extending deep within aperture. Siphonal canal long, narrow, straight, slightly deflected to the left, shallowly notched.   
 Discussion. Takashius kantori nov. sp. is closely similar to the extant Takashius kuroseanus (Okutani, 1975), which has also an identical protoconch (see Kantor et al. 2018: figs 9A–G). They differ in the even slenderer profile and strongly constricted base of the Paratethyan species, its even coarser spiral cords and the slightly longer siphonal canal. Takashius vinculum nov. sp. differs from Takashius kantori in its shorter siphonal canal. Takashius kantori is reminiscent of the extant Granulifusus jeanpierrevezzaroi (Cossignani, 2017) from Vietnam, which differs in its narrow aperture (see Kantor et al. 2018: fig 5). The axials of Takashius vinculum are stronger, more numerous (8 vs. 6), more elevated and the spirals are weaker.   
 Paleoenvironment. Unknown.   
 Distribution in Central Paratethys. Badenian (Middle Miocene): Făget Basin: Lăpugiu de Sus (Romania) (Hoernes & Auinger 1890).
description: Published as part of Harzhauser, Mathias, Landau, Bernard M. & Vermeij, Geerat J., 2024, The Dolicholatiridae and Fasciolariidae (Gastropoda, Buccinoidea) of the Miocene Paratethys Sea, pp. 1-92 in Zootaxa 5470 (1) on page 63, DOI: 10.11646/zootaxa.5470.1.1, http://zenodo.org/record/12189689