Nitzschia fluminensis Grunow (1862: 581)

Al-Handal, Adil Y., Thomas, Evan W. & Pennesi, Chiara, 2018, Marine benthic diatoms in the newly discovered coral reefs, off Basra coast, Southern Iraq, Phytotaxa 372 (2), pp. 111-152 : 139

Nitzschia fluminensis Grunow (1862: 581) ( Fig. 93 )

References: Lange-Bertalot & Krammer 1987, p. 18, pl. 12, figs 6–9; Hein et al., 2008: p. 84, fig. 58: 12; Witkowski et al. 2000, p. 381, pl. 202, figs 6–9.

Features: Length 95 μm, width 10 μm, striae 16 in 10 μm, fibulae unevenly spaced, 6–7 in 10 μm.

Description: Valves lanceolate with produced apices. Raphe central, fibulae unevenly spaced, moderately long, prolonged into transapical short ribs.

Remarks: Easily distinguished by its produced apices, coarse striae and the shape of fibulae.

Ecology and Distribution: Marine epipelic species, widely distributed in warm waters. Previously reported from the Gulf (Al-Yamani & Saburova 2011). Rare in Basra corals.

Figures

FIGURES 91–102. Marine benthic diatoms in coral reefs off Basra. Fig. 91. Nitzschia behrei, Fig. 92. Nitzschia distans, Fig. 93. Nitzschia fluminensis, Fig. 94. Nitzschia lorenziana, Fig. 95. Nitzschia sigma, Fig. 96. Nitzschia sp., 97. Pssamodictyon panduriformis Fig. 98. Tryblionella coarctata, Fig. 99. Tryblionella didyma, Fig. 100. Tryblionella nicobarica, Fig., Fig. 101. Amphiprora sulcata, Fig. 102. Auricula intermedia.