Must be one of the most submitted pages. Is there a list?
I propose that these palps or tabs are remnants of the reproductive cycle, vestigial points of contact in the budding process. This phenomenon can be observed in some other classes within phylum Plasticae, and I see no reason to assume it is not happening here.
Even then there were dozens upon dozens of them on display. It was mind bending.
Like how androids are not men, asteroids (rock) are not stars (plasma), meteoroids (in atmosphere) are not meteors (in space), sphereoids are not spheres, etc.