Just a few millimetres across. Growing amongst coastal vegetated shingle.
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Note sure why iSpot thinks a limpet is a fungus?
It's because I placed it in the "Fungus" category! It does look very limpet like but was soft with a stalk like a small toadstool. But I've no idea what it is. If it is a fungus, it's at least in the right category to attract the attention of the fungus experts. But not the limpet experts!
I think Flaxton might be right, although I can't find much info on this species. It is spelt Deliculata integrella on Wikipedia.
The correct nomenclature would seem to be Delicatula integrella (http://data.nbn.org.uk/speciesInfo/taxonomy.jsp?searchTerm=delicatula&sp....)
Also some info about it at www.wildaboutbritain.co.uk/delicatula-integrella
Lat/Lng: 54.1, -3.1
OS grid ref: SD3075