Stictodiscus kittonianus (both views) from Pamunkey [Pamunkie], VA (Virgina). Fossil. Prepared by Arthur Charles Cole. Published in: Greville, R.K. (1861). Descriptions of new and rare Diatoms. Series IV. Transactions of the Microscopical Society, New Series, London 9: 79-87, pl. X, Figures 2 and 3. In this it is described as “…the frustule to be composed of two unequally umbonate valves, each of them furnished with a broad, folded-down edge, as in the lid of a pill-box, which edge is divided into large, square cellules, corresponding in number with the rays and compartments as seen in the side view.”. On the slide there is only the upper part of the frustule on the side view. Olympus BHB microscope using 450nm LED light. 63x Leitz Pl Apo 1.4 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, brightfield lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 56 images stacked in Zerene (Pmax).