Photograph: (Jung, 1989, Fig. 270.2,4) (Left) NMB H17024. NMB locality 16837: Río Cana, Dominican Republic; Cercado fm. Protoconch with its sinusigerous outer lip and part of first teleoconch whorl, scale = 6 mm. (Right) NMB H17023. NMB locality 15914: Río Gurabo, Dominican Republic; Cercado fm. Apical view, scale = 6 mm.
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