An arrangement of three Actinoptychus sp. No makers name. The label says Santa Monica as the location, but it is a bit hard to decipher everything else. I think the bottom right is Actinoptychus bismarckii, and the bottom left Actinoptychus glabratus (or some variant). Top middle I am less sure of (maybe Actinoptychus areolatus or leptomitos, but I am not sure if these are present at Santa Monica). Strongly orange mountant, but nice and clear. Olympus BHB microscope using 450nm LED light. 20x Nikon Plan Apo NA 0.65 objective. Olympus Aplanat Achromat condenser, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 36 images stacked in Zerene (Pmax).