Classification of Spieker 1922

G. Cerithium Bruguière 1789
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†Cerithium grillanum Spieker 1922
†Cerithium infranodatum Spieker 1922
G. Cypraea Linnaeus 1758 [cowry]
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†Cypraea angustirima Spieker 1922
G. Polinices Monfort 1810 [moon snail]
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†Polinices porcana Spieker 1922
G. Sinum Röding 1798
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†Sinum carolanum Spieker 1922
G. Turritella Lamarck 1799 [turret shell]
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†Turritella charana Spieker 1922
†Turritella prenuncia Spieker 1922
G. Conus Linnaeus 1758
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†Conus berryi Spieker 1922
†Conus bocapanensis Spieker 1922
†Conus cacuminatus Spieker 1922
G. Murex Linnaeus 1758
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†Murex laqueoratus Spieker 1922
G. Phos Monfort 1810
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†Phos latirugatus Spieker 1922
G. Triumphis Gray 1857
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†Triumphis solida Nelson 1870
G. Arca Linnaeus 1758 [ark]
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†Arca cholana Spieker 1922
†Arca pantheonensis Spieker 1922
†Arca zorritoensis Spieker 1922
G. Pyrula Lamarck 1799
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†Pyrula peruviana Spieker 1922
Subg. Arca (Scapharca) Gray 1847
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Subg. Chione (Lirophora) Conrad 1863
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Subg. Cancellaria (Aphera) Adams and Adams 1854
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