‘Aclis’ didyma E.A. Smith, 1890

Figs 23C, D

Aclis didyma E.A. Smith, 1890: 281, pl. 23, Fig. 30.

Type material. Syntypes: NHMUK 1889.10.1.775–779 [5] .

Type locality. Sanit Helena.

Remarks. Aclis didyma is very similar to ‘ Aclis angulata E. A. Smith, 1890 ’ (see comments above) and has several axial ribs at small intervals in the teleoconch, a feature not known in Aclis . This taxon needs relocation to another group.