Tomostoma, Deshayes, 1824

Tomostoma View in CoL – Deshayes, 1824b: 187. — Type species (SD Fischer, 1885): Pilelolus neritoides Deshayes, 1824 . In erecting this genus, Deshayes noted that he originally proposed Pilelolus at a meeting, but then learned that G. B. Sowerby I, 1823, had established Pileolus J. Sowerby, 1823 View in CoL (SD J. E. Gray, 1847), for P. plicatus G. B. Sowerby View in CoL I, 1823, and other species, which Deshayes regarded belonging in this group. Tomostoma View in CoL was thus proposed in synonymy. However, the ICZN Code Art. 11.6.1 provides that a name established in synonymy can become available if it was used as valid before 1961, as was this one. Symonds & Pacaud (2010: 55-56) discussed the history of these two genus-group names and determined that they are not confamilial – Pileolus J. Sowerby, 1823 View in CoL , belongs in the Pileolidae View in CoL .

— Current status: Tomostoma View in CoL is a valid genus in the Neritidae View in CoL . Tomastoma G. B. Sowerby I, 1824, is a subsequent incorrect spelling ( Petit 2009: 196-197, note 48).