An arrangement of three Stephanopyxis corona from Maryland, USA. Prepared by JA Long. Right hand one is quite tilted. Olympus BHB microscope using 450nm LED light. 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. 63 images stacked in Zerene (Pmax).
Stephanopyxis corona (Ehrenberg) Grunow 1882. Published in: Van Heurck, H. (1882). Synopsis des Diatomées de Belgique. Atlas. pp. pls LXXVIII-CXXXII [78-132 and supplementary pls 22 bis, 82bis, 83bis, 83ter, 95bis], tables genres. Anvers: Ducaju et Cie. Plate 83 ter, Figures 10,11. This name is currently regarded as a synonym of Stephanonycites corona (Ehrenberg) Komura 1999. Published in: Komura, S. (1999). Further observations on valve attachment within diatom frustules and comments on several new taxa. Diatom 15: 11-50, 266 figs. [photos], 6 text-figs. Page 37 (as ‘coronus‘).