Viviparus glacialis

This species of snail has an elongated, slim, rather thick-walled shell with approximately 6 ¼ flat whorls which are separated by a shallow suture.

The surface of the shell is smooth and glossy and bears regular growing lines.

In most cases the periostracum has not been preserved but if it is still present it has a light brown to black color.

It is known from clay pits in the surroundings of the village of Tegelen (Province of Limburg) and in several dozens boreholes, especially in the Southern part of the Netherlands.

Based upon the counting of the annual growth rings within the shell, this species may reach an age of at least 12 years.