An arrangement of two Triceratium albifrons from Sendai, Japan. No name, but probably prepared by WA Firth. Olympus BHB microscope using 450nm LED light. The smaller one was imaged using a 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. 40 images stacked in Zerene (Pmax). 20 images stacked for the image of the arrangement.
Triceratium albifrons Brun in Schmidt et al. 1891. Published in: Schmidt, A.[W.F.] (1891). Atlas der Diatomaceen-kunde. Series V: Heft [41/42]. pp. pls 161-168. Leipzig: Fues’s Verlag (R. Reisland). Plate 166, Figure 9.