Synedrosphenia licmophoropsis sp. nov. A apical pole of living cell showing plastids and annulus (arrow) (GU44AV-8) B–D holotype valve from GU55B-4 in LM: apical and basal portions showing annulus and entire valve E, F external view of valve, SEM: basal and apical poles, respectively, same scale (GU44Y-13) G, H apical and basal poles, respectively, valve in internal view, SEM, showing longitudinal and transverse costae and pseudosepta (arrows) (GU56A-2). Scale bars: 50 µm (D); 10 µm (A–C, E–G); 5 µm (H).

 
 
  Part of: Lobban CS, Ashworth MP, Camacho T, Lam DW, Theriot EC (2022) Revision of Ardissoneaceae (Bacillariophyta, Mediophyceae) from Micronesian populations, with descriptions of two new genera, Ardissoneopsis and Grunowago, and new species in Ardissonea, Synedrosphenia and Climacosphenia. PhytoKeys 208: 103-184. https://doi.org/10.3897/phytokeys.208.89913