Found by Karen! Video showcasing big beating heart and what looks like a defensive cerata flare: https://flic.kr/p/2pB8Jt3. ~ 4-5mm.
Tidepooling. Potential new species found by @chloe_and_trevor and collectively collected.
In the collection container it seemed to munch on some hydroids (photos 4-7).
Same individual as: https://www.inaturalist.org/observations/107604567
Super weird one, 5-6mm long, found on red algae. Orange flecks are throwing me off..
Tide pool at -0.62'.Same as one posted by @imlichentoday today.