Decreases were commonly 10% and sometimes as much as 20% of total shell height.

It lives at depths of between 100 and 200 m. The shell height is up to 23 mm.

One study found that average shell height and infection severity with Trichobilharzia spp.

The shell height is up to 23 cm, and width 19 cm.

These are very small or minute snails, with a shell height of less than 8 mm.

The shell height is up to 30 mm, and width 32 mm.

The shell height is up to 140 mm, and the width up to 48 mm.

The shell height varies between 16 mm and 35 mm.

The shell height is up to about 90 mm.

The shell height can reach up to 65 mm.