Cerithium, Bruguiere, 1789

Harzhauser, Mathias, Guzhov, Aleksandr & Landau, Bernard, 2023, A revision and nomenclator of the Cainozoic mudwhelks (Mollusca: Caenogastropoda: Batillariidae, Potamididae) of the Paratethys Sea (Europe, Asia), Zootaxa 5272 (1), pp. 1-241 : 168

bicostata. Cerithium . Eichwald, 1851

see Pustulosia submitralis ( Eichwald, 1851)

* [ Cerithium mitrale m.] var. bicostata — Eichwald 1851: 88, pl. 7, fig. 12.

Cerithium bicostatum m— Eichwald 1852: 2, pl. 7, fig. 12.

Cerithium bicostatum m— Eichwald 1853: 158.

Potamides bicostatus Eichwald — Csepreghy-Meznerics 1950: 27, pl. 1, fig. 15.

Type material. We are not aware of the whereabouts of the type specimens.

Type locality. No locality indicated by Eichwald (1851). From the context, the material derives from a locality in the Ukrainian Fore-Carpathian Basin, such as Zalistsi and Zhukivtsi.

Stratigraphy. Middle Miocene, Sarmatian (Volhynian).

Discussion. The illustrated specimen represents a slender shell with reduced sculpture and weak mid-whorl angulation. It might represent an aberrant morph of Pustulosia submitralis with reduced beads.

Central Paratethys. Sarmatian, Volhynian (Middle Miocene): Ukrainian Fore-Carpathian Basin: no locality indicated by Eichwald (1851).