Maximum size: 1.7 - 3.5 cm

Depth: ? 

It is a shell snail from the family Neritidae (mermaid snails).

They have a thick-walled shell and live in salt, brackish or fresh water.

and are mainly found in the tropics.

One of the better known herbivorous snails.

Rather inactive during the day and prefer to move around at night.

They have a very hard shell, which can protect them well from other animals.

Most Neritidae are subtropical or tropical rock dwellers that prefer the intertidal zone.

Bangka island North Sulawesi