Cerithium pyramidella, Handmann, 1883

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 : 202-203

pyramidella . Cerithium . Handmann, 1883b

see Potamides fraterculus (Mayer, 1878)

* Cerithium pyramidella n. f.— Handmann 1883b: 168.

Type material. The holotype of Handmann (1883b) was stored in the Kollegium Kalksburg in Vienna, a Catholic private school, but seems to be lost .

Type locality. Ĥlles ( Austria) .

Stratigraphy. Middle Miocene, Sarmatian (Volhynian).

Discussion. Handmann (1883b: 167) discussed a close similarity with Cerithum hoellesense Handmann, 1883b [= Potamides fraterculus (Mayer, 1878) ] from which his species is distinguished by its more prominent axial ribs and weakly convex whorls. The description suggests that Handmann (1883b) had a specimen of Potamides fraterculus (Mayer, 1878) at hand.

Central Paratethys. Sarmatian, Volhynian (Middle Miocene): Vienna Basin: Ĥlles ( Austria) ( Handmann 1883b).

pyrguloides. Potamides . Andrussow, 1902

see Potamides caspius Andrussow, 1902

* [ Potamides caspius ] var. pyrguloides — Andrussow 1902: 57, pl. 1, fig. 11.

Type material. Lectotype designated herein: Nr. 103/358, illustrated in Andrussow (1902: pl. 1, fig. 11); TSNIGR Museum Saint-Petersburg (see also Malchevskaya 1985).

Type locality. Utva River ( Kazakhstan) .

Stratigraphy. Late Pliocene/Pleistocene, Akchagylian.

Discussion. This taxon is a subjective synonym of Potamides caspius Andrussow, 1902 , representing a morph without beads and with weak spiral sculpture.

Eastern Paratethys. Akchagylian (Late Pliocene/Pleistocene): Caspian Basin: Kizilyurt, Kamyshchai River (Daghestan, Russia) ( Goloubiatnikow 1902); Belaya Rostosh' (near Inder Lake, Atyrau Region), Utva River (West Kazakhstan Region, Kazakhstan) (Davidaschvili 1932; Kolesnikov 1950); Qazanbulaq, Naftalan ( Azerbaijan) ( Ali-Zade 1969); Danata, Small Balkhan, Kopet Dag, Krasnovodsk peninsula ( Turkmenistan) ( Ali-Zade 1967).