FIGURES 44–49. Lyrella barbara. Figs 44–47 in A revision of the diatom genus Lyrella Karayeva (Bacillariophyta: Lyrellaceae) from the Black Sea, with descriptions of five new species

FIGURES 44–49. Lyrella barbara. Figs 44–47: Valve view, LM, scale bar = 10 µm. Fig. 48: External view, note girdle bands bearing a single row of areolae and fine structure of lateral areas, SEM, scale bar = 10 µm. Fig. 49: Internal view, note occlusions of areolae irregular in shape, and structureless internal surface of lateral areas, SEM, scale bar = 10 µm. Specimens from the Black Sea (Balaklava Bay, Omega Bay, Cape Feolent).