نبذة مختصرة : FIGURES 20–22. FIGURE 20. Relationship between the width of the umbilical callus and the maximum diameter for species of Payraudeautia Bucquoy, Dautzenberg & Dolfuss, 1883 studied herein. FIGURE 21. Relationship between the width of the umbilical callus and the umbilicus width for species of Cochlis Röding, 1798 studied herein. FIGURE 22. Relationship between the width of the abapical sulcus and the width of the adapical sulcus for species of Cochlis Röding, 1798 studied herein. ; Published as part of Pedriali, Luca, Sosso, Maurizio & Dell'Angelo, Bruno, 2019, Naticid gastropods from the middle Miocene of western Ukraine, pp. 151-195 in Zootaxa 4700 (2) on page 162, DOI:10.11646/zootaxa.4700.2.1, http://zenodo.org/record/3548348
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