Auricula intermedia (Lewis) Cleve (1894: 21)

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 : 141-143

Auricula intermedia (Lewis) Cleve (1894: 21) ( Fig. 102 )

References: Peragallo & Peragallo, 1897 –1908, pl. 42, figs12, 13; Podzorski & Håkansson, 1987, pl. 40, fig. 7.

Features: Length: 60 μm, width 15 μm, fibulae 8–10 in 10 μm, striae 16–17 in 10 μm.

Description: Frustules rectangular, constricted in the middle with rounded corners. Valves with deeply arcuate dorsal margin and straight ventral margin. Raphe eccentric, fibulae small. Transapical striae parallel in the middle and curved near apices.

Ecology and Distribution: Marine species, more common in warm water. Previously reported from the Gulf (Al-Yamani & Saburova, 2011). Very 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.