A–X Achnanthidium gladius Tseplik, Kulikovskiy, Glushchenko & Genkal, sp. nov. LM, DIC, size diminution series. Slide no 04123. A–L raphe valves M–X rapheless valves. Holotype (G). Scale bar: 10 μm.

 
 
  Part of: Tseplik ND, Maltsev YI, Glushchenko AM, Kuznetsova IV, Genkal SI, Gusev ES, Kulikovskiy MS (2021) Achnanthidium gladius sp. nov. (Bacillariophyceae) – a new monoraphid diatom species from Indonesia. PhytoKeys 187: 129-140. https://doi.org/10.3897/phytokeys.187.73913