Waterton. 1–3 Encyonopsis czarneckii [E. alpina or E. subminuta PH] (4533) 4 Encyonopsis cesatii (4533) 5, 6 Navicula vulpina (4520) 7, 8 Navicula aurora (4520) 9 Navicula weberi (4520) 10 Caloneis tenuis (4520) 11 Caloneis sp. (4532). Scale bar: 10 µm.