Hyalodiscus ambiguus from Cape Agulhas, South Africa. Single example on the slide. Mounted in Hyrax and dated 1931. Prepared by Revd. Dingley P Fuge. Olympus BHB microscope using 450nm LED light. 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. 54 images stacked in Zerene (Pmax).
Published in: Tempère, J. & Peragallo, H. (1889). Diatomées Collection [Text and Tables of Collection des Diatomées du Monde Entier, ed. 1]. : 1-62 (Table des provenenaces); 1-304 (Diatomées collection).