Two examples of Campylodiscus decorus. Prepared by Flatters and Garnett Ltd. Olympus BHB microscope using 450nm LED light. As well as the pair, I imaged the larger one using the 63x Leitz Pl Apo 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 106 images stacked in Zerene (Pmax).
Campylodiscus decorus Brébisson 1854. Published in: Brébisson, A. de (1854). Note sur quelques diatomées marines rares ou peu connues, du littoral de Cherbourg. Mémoires de la Société Impériale des Sciences Naturelles de Cherbourg 2: 241-258, 1 pl. Page 251, Figure 2. This name is currently regarded as a synonym of Coronia decora (Brébisson) Ruck & Guiry 2016. Published in: Ruck, E. & Guiry, M.D. (2016). Validation of the diatom genus name Coronia (Surirellaceae, Bacillariophyta). Notulae Algarum 11: 1-3. Page 2.