Hyalodiscus stelliger. Linear arrangement of three diatoms. No location given. Prepared by Watson and Sons. Name regarded as a synonym of Podosira stelligera. Olympus BHB using 450nm LED light. Individual stacks using 63x Leitz Pl Apo NA 1.40 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, bright field lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. Images stacked in Zerene (Pmax).