A circular diatom arrangement, titled Anglesey coastal collection, a mixed representative and selected sample from Anglesey, North Wales. Prepared by Barry Pemberton. Mounted in Darax, dated 2022. Olympus BHB microscope using 450nm LED light. 20x Nikon Plan Apo NA 0.65 objective. Olympus Aplanat Achromat condenser, oil immersion, slightly oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. Two stacks, each of 16 images done in Zerene (Pmax), pasted together in Photoshop.