An arrangement of three Triceratium coniferum from Springfield, Barbados. The left and middle ones are flat to the slide, but are rim facing the coverslip. The right hand one is rim facing the coverslip but tilted. No makers name however this is by Laurence Hardman. 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. 71 images stacked in Zerene (Pmax).
These are shown in Schmidt’s Atlas (Plate 96, Figs 27-31), along with a description which states “Grunow suspects that these extremely varied forms belong to Trinacria.”. Looking at them I am inclined to agree.