Haida Gwaii. 1–6 Navicula gregaria (6888, 6889, 6890) 7 Navicula eidrigiana (6890) 8 Navicula exilis (6889) 9, 10 Navicula leptostriata (5064) 11, 12 Stauroneis heinii (5065, 6889) 13 Navicula radiosa (5065) 14, 15 Navicula angusta (5063) 16–18 Navicula cryptotenella (5063, 5065). Scale bars: 10 µm.