An arrangement of three Stephanopyxis diadema from Maryland, USA. Prepared by JA Long. Olympus BHB microscope using 450nm LED light. I selected one for higher resolution imaging with the 40x Leitz Pl Apo NA 1.00 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 73 images stacked in Zerene (Pmax). I would have preferred to use the 63x Leitz objective, but couldn’t get close enough with it.
Stephanopyxis diadema Ehrenberg, 1845. Original description: Ehrenberg, C.G. (1845). Neue Untersuchungen über das kleinste Leben als geologisches Moment. Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlich-Preussischen Akademie der Wissenschaften zu Berlin, 1845: 53-87. Page 80.