Triceratium adspersum from Hayti [Haiti]. Single example on the slide, mounted with the rim facing the coverslip (an underside view). Unknown maker. 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. 58 images stacked in Zerene (Pmax).
Shown in Schmidt’s Atlas in Plate 76, Figure 1. Synonymised names (from th WoRMS website);
Cladogramma adspersum (Schmidt in Schmidt et al.) Kuntze, 1898 · uncertain > unassessed.
Stictodiscus adspersus (Schmidt in Schmidt et al.) Truan y Luard & Witt, 1888 · uncertain > unassessed.
I recently acquired about 60 slides by this maker, so if you want to see others by them, search for AAAAA in the Search option at the top of the page, and I’ll include this in each of the pages for them.