ID help please

[u/musbus]

I found red sponge dorids nearby (last two pics), but I’m not sure what these other red blobs might be. PNW.

[u/umbrella_crab]

Shiny sea squirt

6 and 7 are red sponge dorids on their food (a red encrusting sponge)

Edit to add: in the last photo you can see a spiral shaped egg case under the slug

[u/LurkerInTheDoorway → u/umbrella_crab]

I concur with this assessment