Eunotia cf. neomundana Metzeltin & Lange-Bertalot,

Ruwer, Daiane Trevisan & Rodrigues, Liliana, 2021, Sediment diatoms from Upper Paraná River floodplAiN lAKeS: New recordS, Iheringia, Série Botânica (e 2021012) 76, pp. 1-16 : 7

Eunotia cf. neomundana Metzeltin & Lange-Bertalot,

Iconogr. Diatomol., 5: 69, pl. 19, figs 1-6, pl. 22, figs 1-3. 1998.

( Figs. 66-68 )

Valves almost linear, with a slightly triundulate ventral and dorsal margins. Ends apiculate, cuneate-apiculate, and attenuate-rounded. Striae parallel to slightly radiate at the ends, equidistant. Length: 25.2-76.1 μm; width: 6-10 μm; striae 8-13 in 10 μm. The studied population is similar to the type material described in Metzeltin & Lange Bertalot (1998) however; specimens documented have lower values of length and width.

Material examined: BRAZIL, MATO GROSSO DO SUL: Taquaruçú, Patos Lake , 23.III.2018, sediment, D.T. Ruwer (Nupélia UEM - 18101-120 ) .

Occurrence: Paú Veio Lake , Upper Paraná River floodplain, ( Biolo & Rodrigues 2013).

Figures

Figure 66-85. Sediment diatoms from subtropical floodplain lakes (LM). 66-68. Eunotia cf. neomundana; 69-71. Eunotia cf. bidens; 72-73. Eunotia papilio; 74-75. Eunotia pseudosudetica; 76-77. Eunotia rabenhortii var. monodon; 78-82. Eunotia sp. 1; 83-85. Eunotia sp. 2. (Scale bar: 10 μm).