An arrangement of Navicula genifera (4 on the left) and zanzibarica (2) on the right. No locations given. Prepared by JA Long. Olympus BHB microscope using 450nm LED light. I selected one of the Navicula genifera for further imaging (there are other examples of N. zanzibarica on this site). 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. 16 images stacked in Zerene (Pmax).
Navicula genifera A.W.F.Schmidt 1874. Published in: Schmidt, A.[W.F.] (1874). Atlas der Diatomaceenkunde. Series I, Heft 1. pp. pls 1-4. Aschersleben: [Verlag von Ernst Schlegel]. Plate 2, Figure 6. This name is currently regarded as a synonym of Lyrella genifera (A.W.F.Schmidt) D.G.Mann. Marine species. Location, Jamaica (based on USGS document ‘Plate 52. Diatoms from various or unknown localities’: https://pubs.usgs.gov/of/2012/1163/pages/Plates/52_Various.pdf).
Navicula zanzibarica Greville 1866: 129. This name is currently regarded as a synonym of Lyrella zanzibarica (Greville) D.G.Mann. Navicula zanzibarica Greville, 1866 accepted as Lyrella zanzibarica (Greville) D.G.Mann, 1990 accepted as Navicula zanzibarica var. zanzibarica Greville, 1866. Greville, R.K. (1866). Descriptions of new and rare Diatoms. Series XX. Transactions of the Microscopical Society, New Series, London, 14: 121-130, pls XI & XII. Page 129, Plate 12, Figure 22.