Any ID of the snail or the insect would be very welcome.
No interactions present.
Some rove beetles are known to feed on snails / snail mucus but I don't know if this is known for Paederus (if I'm right about the genus). It certainly looks like Paederus species I have come across in the tropics before (identified by experts) and know to be wary of handling them, as chemicals they exude cause skin blistering... This links says there are 4 UK species http://www.glaucus.org.uk/Paederus.htm Paederus caligatus, fuscipes, littoralis and riparius but I'd guess only a Staphylinid expert could take it further!
Nick Upton, naturalist and photographer.
Nick, thanks so much for taking the time on this and providing the information and link. I am totally useless at identification (long-time, deep-seated problem) and so the help I am getting from you and others here is invaluable in helping me prepare to display a few photos for a local Wildlife Trust event next month.
Images from Gordano Valley Avon Wildlife Trust sites http://www.flickr.com/photos/gardenersassistant/collections/721576266896...
Images mainly from our garden http://www.flickr.com/photos/gardenersassistant/
No probs. Don't take my input as gospel, though, as I know a little about a lot, but never a lot about any one thing as I'm very much a generalist ...but this looked very familiar to me. I get a lot ID help from sites like this to ID my photo queries, so am happy to reciprocate when I can.
The snail isn't easy to identify from that angle, but I think I can see the body contents showing through the shell, which is most obvious in Monacha cantiana, the Kentish Snail, which has a pale body, and no darker marks or stripes on the shell.
Lat/Lng: 51.49085, -2.74476
OS grid ref: ST483771