Angustopila coprologos Pall-Gergely, Jochum & Hunyadi, 2022

Diagnosis.

This species is characterised by strong spiral sculpture consisting of a series of coarse elevations (flat-topped beads) in a chain-like pattern and three or four well-developed teeth (one parietal, one or two palatal, one subcolumellar).

Differential diagnosis.

The unique sculpture together with the shell and aperture shape and the arrangement of apertural barriers distinguishes this species from all congeners.

Remarks.

Two subspecies are distinguished based on differences in the apertural barriers.

Living specimens of both subspecies place mud granules (possibly mucus-packaged faeces) on their shells, which is most probably for camouflage, and/or may play a role in biochemical communication and water retention ( Páll-Gergely et al. 2022).