“Puck and Fairies, from A Midsummer Night’s Dream” is the title of this work by Sir Joël Noël Paton (1821–1901); he made it around 1850. The painting is currently in the Yale Center of British Art, New Haven and is part of the Google Art Project . The scene is after Act II, Scene II of Sheakespeare’s play .
One of the figures in the background has a shell as helmet on his head. The dextral shell has a colour pattern of spiral bands and a pink apertural lip.
In the foreground, half in the shadows, a living snail moves in on the scene. It is a Cepaea-like snail and the animal has raised all its tentacles to full attention.
 YBA, inv. B1975.5.6. http://collections.britishart.yale.edu/vufind/Record/1667204; http://to.ly/Bnfn.