Cocconeis sawensis Al-Handal et Riaux-Gobin, 2014

Al-Handal, Adil Y., Riaux-Gobin, Catherine, Abdulla, Dawood S. & Ali, Malik H., 2014, Cocconeis sawensis sp. nov. (Bacillariophyceae) from a saline lake (Sawa Lake), South Iraq: comparison with allied taxa, Phytotaxa 181 (4), pp. 216-228 : 217

Cocconeis sawensis Al-Handal et Riaux-Gobin sp. nov. (LM Figs 2–9 ; SEM Figs 10 –41)

Holotype: Permanent slide BM 101 689 deposited in the Natural History Museum , London (UK), from material collected as epiphyte on Chara sp. (Sawa Lake, South Iraq)

Isotype: Slide No. SL52013 , Department of Marine Biology , Marine Science Center, Basra, Iraq .

Type locality: Sawa Lake , 31 18 N, 45 00 E .

Figures

FIGURES 2–9: Light micrographs of Cocconeis sawensis sp. nov. Figs 2–4 valves with slightly different shapes. Figs 5–7 showing sternum valves. Fig. 8 shows variation in size of raphe valve. Fig. 9 shows variation in size of sternum valve.

FIGURES 10–15. SEM micrographs of the sternum valve of Cocconeis sawensis sp. nov. Fig. 10, external view of the SV. Fig. 11, internal view of the valve with the raised and thick sternum. Figs 12,13 external view showing valve curvature, and vestigial raphe structures. Fig. 14, enlarged part of the internal side showing slightly elevated axial area. Fig. 15, internal side with the valvocopula still attached. Note the presence of a pore-like structure on one apex and the eccentric valvocopula opening.