This report is the fifth part of the monograph of the rich assemblage of gastropods occurring in the so-called Pleurotoma Clays of Middle Miocene (Badenian) age, exposed in the environs of Korytnica in the Holy Cross Mountains, Central Poland. Besides 73 species, described earlier, the report contains descriptions of 52 species omitted from the earlier parts; of which, 50 were not recorded previously from Korytnica. Five species are established as new: Cocculina (Dallia) unicasp.nov., Turritella (Peyrotia) circumcisa sp.nov., Caecum korytnicense sp.nov., Morula valdemari sp.nov., and Ocinebrina recognita sp.nov. A new name, Megalomphalus palazzii nom.nov. is proposed for Narica depressa BOETTGER, 1907 [=Megalomphalus depressus (BOETTGER, 1907)], which is a homonym of Megalomphalus depressus (SEGUENZA, 1876).
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This report is the fourth part of the monograph of the surprisingly rich assemblage of gastropods occuring in the socalled Pleurotoma Clays of Middle Miocene (Badenian) age, exposed in the environs of Korytnica in the Holy Cross Mountains, Central Poland. It contains characteristics of 101 prosobranch species of one family, the Turridae. Within this assemblage, five species are new for the science (including one, formerly reported from Korytnica, but determined erroneously); of the recognized species as many as 72 have not hitherto been reported from Korytnica, and 66 from the Miocene of Poland. As the new species established are: Clavatula kowalewski sp.nov., Perrona (Perrona) czarnocki sp.nov., Turricula (Surcula) korytnicensis sp.nov., Cythara (Mangelia) cibori sp.nov., and Bela sanctacrucensis sp.nov.