Hydrobiinae sp. indet.

Fig. 8M-O, R-T

Material.

1 specimen (RGM 1365350) from sample 1.

Dimensions.

2.52 × 1.37 mm.

Remarks.

A single specimen is available, characterized by a small, white, conical shell with convex whorls, simple aperture, and distinct, orthocline growth lines. The protoconch is low domed, forming a bulbous cap of ~1.2 whorls, and apparently smooth, but this might be a result of the moderate preservation. The available features suggest placement in Hydrobiinae, but at present an attribution to genus or species cannot be made.

Subfamily Pyrgulinae Brusina, 1882