I propose this genus-name, and name Fusus plebeius Hutton, 1873, as type. Kalydon Hutton, 1884, that would otherwise be used for these shells, is invalidated by the prior Calydon J. Thomson, Syst. Ceramb., p. 263, 1864. The two names are absolutely the same, the C and K in this case being interchangeable. These miniature coloured “Trophons” form an easily recognized group to me, but, as observed in the succeeding note, my interpretation is not coincident with that of my friend Mr. Charles Hedley.”
(Iredale, 1915: 471)
