SEM micrographs of Luticola inserata (Hustedt) D.G.Mann. External view of valve (A, B). Detailed external views showing proximal raphe endings with irregular shallow grooves C distal raphe ending, areolae D stigma opening E internal view of valve F detailed internal view showing proximal raphe endings and stigma opening G and distal raphe ending and hymenate structure H open copulae I. Scale bars: 10 µm (A, F, I), 5 µm (B–D, G), 3 µm (E), 4 µm (H).

  Part of: Rybak M, Witkowski A, Peszek L, Kociolek JP, Risjani Y, Nguyen DH, Zhang J, Yunianta, Nguyen VD, Gastineau R, Duong TT, Rosa P, Meleder V (2021) Marine and brackish Luticola D.G.Mann (Bacillariophyta) species from the Java Sea and South China Sea coasts with the description of three new species. PhytoKeys 183: 115-142.