catenoides, Cyclostrema [ Skenea catenoides (Monterosato, 1877)] (Figures 2M, N)

1877d: 417, 2 figures [XVIII: 353]—available name

Type material. MCZR–M–11807 —1 sh “Magnisi”// 6 sh “Magnisi (Sicilia)”// 1 sh “Ognina”// 3 sh “Mondello”// 6 sh “ Cyclostrema catenoides Trapani da Allery ”. Label in the bottom: “ Cyclostrema catenoides Monts Ann. Mus. Civi. Genova 1876—77, p. 11 (fig. nel testo)”

Type locality. Described from Palermo, Ognina, Magnisi, Trapani (Sicily), Pantelleria Is., and Civitavecchia, (Italy).

Remarks. Recorded by MolluscaBase (2018) as Skenea catenoides (Monterosato, 1877) .

depressum, Cyclostrema [ Dikoleps depressa (Monterosato, 1880)]

1878c: 80 [XIX: 394]—nomen nudum

1880c: 67 [XXVII: 551]—available name

Type material. MCZR –M–11782 [label only] “ Cyclostrema depressum Monts n. sp. Pal. 1875, 200— 280 m!”. Type locality. Described from Palermo (Sicily) .

Remarks. The material figured by Gaglini (1987b: 6, figs 11, 12) from Palermo has not been found in the original box, where only the label remains. Recorded by MolluscaBase (2018) as Dikoleps depressa (Monterosato, 1880) .