There wasn’t masses of information but this maritime snail, appears to like calcareous grounds or coastal grassland.
I noticed that there were an abundance of the snails on the stems of dead flowers, on the sheltered side of the walkway and after doing a bit of reading, I think they were aestivating (a period of inactivity and low metabolic function), basically waiting for the right conditions in which to move, feed and breed again. I think the maritime habitat is more likely to be frost-free, and they tend to do well in the south.
Interestingly, they have been introduced into several countries, including Australia, where they have become an invasive pest. So when we think of invasive, we tend to think of other species creating havoc in our own country, but it seems our own can cause just as much havoc when in foreign lands.
Apparently, these snails can be the intermediate host for a terrestrial trematode parasite called Brachylaima cribbi, which eventually crosses to birds, reptiles, mammals and even humans.
Amazing stuff- who would have thought!
Think I could get into snails!