The remains of a Jellyfish.
A couple of the many smaller jelly fish, some seemed to be just wafer thin like transparent rose petals others a bit more solid.
Rather the worse for wear, a large jelly fish, with large number of smaller jelly fish.
Three jellyfish with red centres underneath. Being washed on and off the beach, didn't seem to be pulsating at all so may have been too battered already. The first photo show one stranded and folded back on itself showing underneath.
Here are two photos of Cyanea capillata or Lion's Mane jellies. After not seeing any on the beaches for a couple of months, today I found six dead ones on the beach. One photo shows a dead or dying Cyanea capillata still in the water. Each was about a foot across.