An arrangement of three Triceratium parallelum from Bain’s Farm, Oamaru, New Zealand. Prepared by WA Firth. Olympus BHB microscope using 450nm LED light. 20x Nikon Plan Apo 0.65 objective. Olympus Aplanat Achromat condenser, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 35 images stacked in Zerene (Pmax).
Presumably this is now known as Stictodiscus parallelus var. parallelus f. trigona.