Two lipped door snail
Sint Joris Weert, Belgium (April 2012).
One morning I found this tiny snail climbing up one of my kitche windows. it felt almost painful to see such a small thing carrying such a big long house!
Two lipped door snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae. this snail has a clausilium. This spoon-shaped "door" is supported by, and slides in, a series of internal shell folds.
Habitat:
This species is known to occur in a number of European countries.

"Alinda biplicata", also known as "Balea biplicata", common name the two lipped door snail or Thames door snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails, all of which have a clausilium.