Naticopsis (Naticopsis) minuta n.sp.

PI. 14 Figs 9-12

Description. Shell minute, globular, neritiform, anomphalous. Protoconch of about ll1z smooth whorls, apex bulbous. Teleoconch of about 211z, convex whorls, suture with whorls adpressed, surface ornamented with fine collabral threads, whorl embracing much of previous whorl. Aperture convex, lenticular in shape; columella lip slightly thickened, arched; inner lip and outer lip thin.

Types. Holotype (F78463) and 1 figured paratype (F78464). There are 50 unfigured additional specimens (F78462) from the type locality.

Type locality. Behind 'Kyndalyn' homestead, 10 km south-west of Somerton, NSW (Locality 24).

Stratigraphic position. In base of oolitic limestone in the Kyndalyn Mudstone Member of the Merlewood Formation.

Geographic distribution. Type locality only.

Geological age. Middle or late Visean.

Etymology. Derived from the Latin minutus meaning little, small.

Remarks. This is a small shell with a thin callus, commonly occurring in the type locality.