Cerithium (Vertagus) attenuatum Philippi, 1848 Cerithium attenuatum Philippi, 1848 Cerithium longicordatum A. Adams & Reeve, 1850 Vertagus attenuatus (Philippi, 1848) Rhinoclavis longicaudatum is a species of sea snail, a marine gastropod mollusk in the family Cerithiidae.

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