Figure 4 From: Jahn R, Kusber W-H, Cocquyt C (2017) Differentiating Iconella From Surirella (Bacillariophyceae): Typifying Four Ehrenberg Names and a Preliminary Checklist of the African Taxa. PhytoKeys 82: 73-112.

doi 10.3897/phytokeys.82.13542.figure4