Classification of Woodring et al. 1946
G. Bittium Gray 1847
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Bittium interfossum Carpenter 1864
Bittium larum Bartsch 1911
G. Cerithiopsis Hanley 1849
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Cerithiopsis necropolitana Bartsch 1911
Cerithiopsis willetti Bartsch 1921
G. Rissoina d'Orbigny 1840
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Rissoina aequisculpta Keep 1887
Rissoina coronadoensis Bartsch 1920
Rissoina kelseyi Dall and Bartsch 1902