A strew slide labelled as ‘New Biddulphia, China’ (presumably Biddulphia chinensis) from Hong Kong harbour. Prepared by Watson and Sons Ltd. Olympus BHB microscope using white LED light. 10x and and 20x Nikon Plan Apo objectives. Brightfield lighting with an Olympus Aplanat Achromat condenser. 2.5x Nikon CF PL photoeyepiece. Canon EOS R6 mkIII camera. Single unstacked images. First attempts with this camera, and amazingly I have no way of opening RAW files from it on my computer, so the white balance has been done on the Jpegs and is a bit ‘off’. However the amazing colours of the diatoms can still be seen.
Biddulphia chinensis Greville 1866. Published in: Greville, R.K. (1866). Descriptions of new and rare diatoms. Series XX [actually XIX]. Transactions of the Microscopical Society, New Series 14: 77-86, pls VIII, IX. :Page 81, Plate IX [9], Figure 16 (as ‘Chinensis‘). This name is currently regarded as a synonym of Trieres chinensis (Greville) Ashworth & E.C.Theriot 2013. Published in: Ashworth, M.P., Nakov, T. & Theriot, E.C. (2013). Revisiting Ross and Sims (1971); toward a molecular phylogeny of the Biddulphiaceae and Eupodiscaceae (Bacillariophyceae). Journal of Phycology 49(6): 1207-1222. Page 1221.