Olifantiella paucistriata C.Riaux-Gobin, 2012

Rybak, Mateusz, Arsad, Sulastri, Riaux-Gobin, Catherine, Luthfi, Oktiyas Muzaky, Hallegraeff, Gustaaf, Cias, Renata, Kierzek, Agnieszka & Witkowski, Andrzej, 2023, Distribution and morphology of the diatom genus Olifantiella Riaux-Gobin & Compere in Indonesian and Australian waters, including the description of O. gondwanensis sp. nov., PhytoKeys 236, pp. 197-213 : 197

Olifantiella paucistriata C.Riaux-Gobin

Fig. 5A

Description.

Valves small, elliptic with rounded apices, 6.1 μm in length, 2.7 μm in width and 31 striae in 10 μm. Striae composed of macroareolae, equidistant, with finely perforated hymen. External buciniportula opening sunken in the valve face connected with central raphe endings by small grooves. On the buciniportula-bearing side, 1-2 shortened striae are present. External proximal raphe endings straight with small grooves, terminal raphe endings strongly hooked towards buciniportula side.

Distribution.

Newly observed from coastal waters of Sulawesi Island (sample SZCZ 28814). Originally reported from Rodrigues Island ( Riaux-Gobin and Al-Handal 2012).

Figures

Figure 5. SEM documentation of Olifantiella paucistriata (A) and Olifantiella pilosella (B-F) from from Sulawesi Island coast (sample SZCZ 28814). Scale bars: 3 µm (A-D); 2 µm (E); 1 µm (F).