An arrangement of four Eupodiscus radiatus. No makers name or date, or details of location or mountant used. Olympus BHB microscope using 450nm LED light. 20x Nikon Plan Apo NA 0.65 objective. Olympus Aplanat Achromat condenser, brightfield lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 18 images stacked in Zerene (Pmax).