Propebela rugulata

Propebela rugulata (common name : Gould's northern turrid) is a species of sea snail, a marine gastropod mollusc in the family Mangeliidae.

Description
The whorls are angulated; the axial ribs straight, and not sigmoid. The length of the aperture is about the same as that of the spire. The angulated part of the ultimate whorl is sharp. The apex has a somewhat flattened protoconch. The first whorl has two prominent spiral ribs. The teeth of the radula vary, from broad-coniform to elongate-coniform

Distribution
This marine species occurs from Greenland to Massachusetts, USA. Fossils have been found in Quaternary strata of Iceland, age range: 2.588 to 0.012 Ma