Cerithium rectum

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 : 205

rectum . Cerithium A.A. Ali-Zade & Kabakova in Ali-Zade, 1969 [non Vinassa de Regny, 1898]

see Potamides caspius Andrussow, 1902

* Cerithium rectum A. Ali-Zade et Kabakova n. sp. —A.A. Ali-Zade 1969: 152, pl. 47, fig. 8 [non Vinassa de Regny, 1898].

Type material. Holotype illustrated in A.A. Ali-Zade (1969: pl. 47, fig. 8), SL: 11.0 mm, MD: 6.5 mm. Museum at Moscow State University ( The Museum of Natural History ).

Type locality. Qazanbulaq ( Azerbaijan) .

Stratigraphy. Late Pliocene/Pleistocene, Akchagylian.

Discussion. The holotype is a slender, smooth shell with inflated last whorl, suggesting a parasitized specimen. The name Cerithium rectum is preoccupied by Vinassa de Regny (1898: 192). As we consider Cerithium rectum A.A. Ali-Zade & Kabakova in Ali-Zade, 1969 to be a junior synonym of Potamides caspius , no replacement name is needed.

Eastern Paratethys. Akchagylian (Late Pliocene/Pleistocene): Caspian Basin: Qazanbulaq ( Azerbaijan) ( Ali-Zade 1969);