FIGURES 21–29 in The genus Luticola D.G.Mann (Bacillariophyta) from the McMurdo Sound Region, Antarctica, with the description of four new species

FIGURES 21–29. Luticola gaussii (Heiden) D.G. Mann. 21. Original illustration from West & West (1911: pl. 26, fig. 135). Light (LM) and scanning electron micrographs (SEM). 22–28. Specimens from Coast Lake, Cape Royds, LM. 29. External valve view of specimens from Clear Lake, Cape Royds, a confirmed West & West (1911) locality, SEM. LM scale bar = 10 μm. SEM scale bar = 5 μm.