Washed ashore with a low tide & returned to water. Nudibranch species? 1 gastropod, top & bottom.
Very wide central blade (approx 13cm)
The purple one top right was the only one I saw, but scores of Holoptneustes porosissmus (?) left behind by the tide.
DCIM\100GOPRO\GOPR0678.JPG
Test, as found near reef under steps.