washed up on strand line of sandy beach
No interactions present.
Kate, when you are satisfied and perhaps get some agreements, you should change the Group (via Edit) to Invertebrates.
Can old windblown egg-cases be invertebrates? iSpot will think so!
See here -
THREE MARINE PROJECTS
Lat/Lng: 50.1252, -5.0943
OS grid ref: SW789295