Wrack on capitola beach after storms.
Soft texture. would love to know what it is
I think this is Pyura stolonifera praeputialis which is the name used in the booklet you sent me @clinton so I could keep an eye out for it.
I found it on the north side of the Bluff just in the one tidal pool. The last photo shows location - from the back where the water is up to the front of the photo - a distance of about 10m.
Each one was releasing the "white noodles" that can be seen in photo 2.
Even though this area was an elimination site for the Pyura Elimination Trial where the aim was to remove this from the entire site, I am guessing that it was not successful because some of it was unable to be cleared completely from the rocky outcrops and the subtidal margins of the northern side of the main rock platform - hence how the area got re-infected.
When I am up there next and if the tide is right I will look around for more of this.
GPS location for this is accurate.
Two separate tunicates, one a fairly flat mass, the other with distinct syphons.
I think this may be a sea squirt. Found under a rock in the mid intertidal zone.
Ascidiacea (commonly known as the ascidians or sea squirts) is a class in the Tunicata subphylum of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer "tunic" made of the polysaccharide tunicin, as compared to other tunicates which are less rigid.