Triceratium undulans from Flume Gully (D.19), Oamaru, New Zealand. Single example on the slide. Dated 24/8/[19]71, and mounted in Styrax. 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, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 39 images stacked in Zerene (Pmax).
Triceratium undulans J.W.Barker & Meakin 1946. Published in: Barker, J.W. & Meakin, S.H. (1946). New and rare diatoms. Journal of the Quekett Microscopical Club Series 4 2(2): 76-79, pls 15, 16. Page 78, Plate 16, Figure 12.