† Cerithium boettgeri Koenen, 1883

Cerithium boettgeri Koenen, 1883: 272 .

Biforina boettgeri (Koenen, 1883) — Gründel 1975: 155.

Triphora boettgeri (Koenen, 1883) — Anderson 1960: 67, pl. 9, fig. 5.

Type locality. Germany, Hohenkirchen .

Type stratum. Oligocene.

Type material. Type material not located so far.

Distribution. Germany (Koenen 1883).

Geological age. Oligocene (Koenen 1883).

Remarks. This name was introduced for a form of Monophorus perversus (Linnaeus, 1758) from the Oligocene by Koenen, 1883. However, the description and reference to this species in Von Koenen, 1883 are vague and we thus consider it a nomen dubium.