demissus, Zizyphinus [ Calliostoma zizyphinum (Linnaeus, 1758)] (Figures 4C, D)

1884h: 44 [XXXI: 700] as Zyzyphinus conulus var. demissa— nomen nudum

1889d: 78 [XXXVII: 888]—available name

Type material. MCZR–M–11617 —1 sh “Algeri (Joly) ( v. colorata)”// 1 sh “ Z. demissus Monts vr. elevata et col. violaceo”

Type locality. Described from Algiers (Algeria).

Remarks. Recorded by MolluscaBase (2018) as a synonym of Calliostoma zizyphinum (Linnaeus, 1758) .