On a Helvella mushroom.
I really have no idea what sort of organisms this/these is/are.
Many (10+) in this short stretch of pool. At least a few seemed to be actively sheltering under/near Anthopleura, with their back legs around the stalk of the anemone
Shell-rich sand under a boulder
Only one, lower intertidal around yesterday's peak -1.2
I guess F. velutipes var. lupinicola