An arrangement of four Synedra hennedyana from Panna Island, New Hebrides. Prepared by WA Firth. Olympus BHB microscope using 450nm LED light. Higher magnification images of parts of one of larger ones. 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. Image stacks prepared in Zerene (Pmax).
Synedra hennedyana W.Gregory 1857. Published in: Gregory, W. (1857). On new forms of marine Diatomaceae found in the Firth of Clyde and in Loch Fyne, illustrated by numerous figures drawn by R.K. Greville, LL.D., F.R.S.E. Transactions of the Royal Society of Edinburgh 21: 473-542, 6 pls [IX-XIV]. Page 532, Plate XIV [14], Figure 108 (as ‘Synedra Hennedyana, n. sp. (?)’). This name is currently regarded as a synonym of Toxarium hennedyanum (W.Gregory) Pelletan.