Triceratium nitescens from Division Hill, Oamaru, New Zealand. Single example on the slide. Mounted in Naphrax and dated January 1966. Prepared by Richard Gosden. Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, slightly oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 41 images stacked in Zerene (Pmax).
Published in: Greville, R.K. (1865). Descriptions of new and rare diatoms. Series XIV. Transactions of the Microscopical Society, New Series, London 13: 1-10, 2 pls [I, II]. Plate II, Figure 19.