Coscinodiscus elegans var. spinifera nsp (new species) from Oamaru, New Zealand. Single example on the slide. No makers name, but the writing is that of Frederick Marshall. 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).
Synonymized names; Cestodiscus spinifer (E. Grove & G. Sturt) J. Fenner, 1981. Coscinodiscus spiniferus (Grove & Sturt) Grove & Sturt ex Grunow, 1888.