1–10 Fragilaria vaucheriae? [F. perminuta?] (6957) 11, 12 Fragilaria sp. (6956) 13–18 Fragilaria sp. (6957) 19, 20 Fragilaria tenera (6956) 21 Fragilaria sepes (6955) 22–26 Fragilaria amphicephala (6957) 27 Ulnaria ulna? (6958) 28–31 Hannaea arcus (6956). Scale bar: 10 µm.

 
 
  Part of: Bahls L, Luna T (2018) Diatoms from Wrangell-St. Elias National Park, Alaska, USA. PhytoKeys 113: 33-57. https://doi.org/10.3897/phytokeys.113.29456