Arion fasciatus lives in large part of Europe in open anthropic habitats such as gardens. It is quite easily distinguishable, because it has a yellow band bellow a dark band on each side.
I have collected this slug and placed it in the terrarium (a glass) with a piece of bark. After 24 hours this slug has taken this position as is on the photo instead of trying to hide in some crevice of the bark. It was “sleeping” like this and it did not move during the the photographing, that have taken 5 minutes. That is ideal cooperation.
I do not know the length of this contracted specimen, but the extended body of this specimen is 36 mm. While this species can reach the body length up to 50 mm.
Many people know Cochlicopa lubrica as a small shining shell only although it is widely distributed Holarctic snail that occupy wide range of habitats.
It doesn’t rest in horizontal position , but it have its shell in oblique position.
Extended body when it starts to move.
There is also visible interesting knobby structure of the foot on the photo:
Vallonia pulchella lives in open habitats. Maybe it lives also in your lawn, but you do not know that, because the length of the shell is maximally 2.5 mm. Enjoy these photos. I like the third one with the extended foot visible.
The right eye of this specimen is either damaged or not fully developed or somehow retracted. I did not found the right eye on other photos too.
Monachoides incarnatus is a very common hygromiid living in forests. Although it is very common, it does not go away from its forest to open land. It is easily recognizable for its reddish apertural margin and for example also for its typical microsculpture of shell (that is partly visible on the first photo).
I have taken this one to home and it is feeding on a piece of cucumber. It seems, that cucumber is the best food source for many snails. But I do not know, if it is only for large amount of water in cucumber (that may be more crucial in artificial conditions than in nature) or for the structure of this food or if it is somehow tasteful for snails.
Macrogastra ventricosa is a clausiliid living in forests. The photo was taken in small woody parts along Bystřice river between Olomouc and Bystrovany, the Czech Republic. It is Near Threatened species in the Czech Republic. The shell of this specimen is 17 mm long, but the animal is much smaller. The white base is a fungus growing on coarse woody debris. Dead wood helps to keep good humidity conditions for this and also for many other species.