Catenula densestriata Luthfi, Witkowski, M.Rybak & Arsad, sp. nov. A–M light micrographs N–X SEM images N external view of valve is semi-lanceolate dorsiventral and semi-circular (P, S) O, Q, X internal view of valves R two frustules are attached to each other by the valve face S areolae on dorsal mantle T a close-up of the detail of the proximal raphe ending as simple and straight U detail of the apical raphe ending deflected on dorsal side V detail of internal view, indistinct helictoglossa (white arrowhead) and linear occluded areolae (black arrowhead) W detail of frustule showing linear areola on mantle valve with several cingula X unperforated girdle band is shown at white arrowhead. Scale bar: 10 µm (A–M).

 
 
  Part of: Luthfi OM, Arsad S, Kryk A, Risjani Y, Yunianta, Rybak M, Peszek Ł, Wróbel RJ, Pappas JL, Bąk M, Witkowski A (2024) New genera and new species of Catenulaceae (Bacillariophyta) from Coral Reef habitat of two Indonesia islands—Bawean and Sulawesi—A morphological approach. PhytoKeys 248: 263-291. https://doi.org/10.3897/phytokeys.248.131839