Hood. 1 Stauroneis livingstonii (6913) 2, 3Stauroneis smithii var. incisa [S. sp. PH] (6912) 4 Staurophora sp. (6912) 5 Stauroneis gracilis (6906) 6 Stauroneis kuelbsii (6898, 6903, 6906) 7 Stauroneis hyperborea [PH] (6906, 6909) 8 Stauroneis amphicephala (6903, 6906) 9 Stauroneis reichardtii (6898) 10 Stauroneis jarensis (6903, 6904, 6906, 6907). Scale bar: 10 µm.