Triceratium nitescens, Barbados. Single example on the slide. Very rare. Prepared by RI Firth. Mounted in Styrax and dates November 1943. Olympus BHB microscope using 450nm LED light. Leitz Pl Apo 63x NA 1.40 objective oil immersion. Olympus Aplanat Achromat condenser, oil immersion, slightly oblique lighting. Nikon 2.5x CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 17 images stacked in Zerene (Dmap).