Kittonia granulata from Russia. One side view with some girdle bands, one top down view. Slide says R.N. which is a bit odd, as I would have thought this would be fossil marine material (so, F.M.). Mounted in Hyrax. Prepared by Flatters and Garnett Ltd. Olympus BHB microscope using 450nm LED light. As well as the wider field of view I imaged the one in side view using the 40x Leitz Pl Apo NA 1.00 objective, oil immersion. Olympus Aplanat Achromat condenser, oil immersion, oblique lighting. 2.5x Nikon CF PL photoeyepiece. Monochrome converted Nikon d850 camera. 37 images stacked in Zerene (Pmax).
Kittonia granulata Chenevière, 1934. Published in: Chenevière, E. (1934). Sur un dépôt fossile marin à diatomées situé à Kamischev (Russie centrale). Bulletin de la Société Française de Microscopie 3(3): 103-107, pls 5-8. Page 104, Plate 5, Figures 4,5. This name is currently regarded as a synonym of Keratophora granulata (Chenevière) Hustedt. In: Schmidt, A. (1940). Atlas der Diatomaceen-kunde. Leipzig. O.R. Reisland, Series VIII(Heft 109-112): pls. 433-448. Plate 434, Figures 5-10.