| Fig. | | Page |
| STAURONEIS—Continued |
| 1 | Stauroneis phœnicenteron Ehr. | [88] |
| 2 | Stauroneis acuta Wm. Sm. | [89] |
| 3 | Stauroneis americana A. S. | [89] |
| 4 | Stauroneis anceps var.? | [88] |
| 5 | Stauroneis anceps var. gracilis (Ehr.) Cl. | [88] |
| 6 | Stauroneis salina Wm. Sm. | [89] |
| 7 | Stauroneis anceps var. amphicephala (Kuetz.) Cl. | [88] |
| 8 | Stauroneis anceps var.? | [88] |
| 9 | Stauroneis anceps var.? | [88] |
| 10 | Stauroneis crucicula (Grun.) Cl. | [89] |
| 11 | Stauroneis smithii Grun. | [89] |
| NAVICULA |
| 12 | Navicula lacustris Greg. | [92] |
| 13 | Navicula hasta Pant. | [97] |
| 14 | Navicula hasta var. punctata n. var. | [97] |
| 15 | Navicula punctata var. asymmetrica Lagerstedt | [92] |
| 16 | Navicula dicephala Wm. Sm. | [96] |
| 17 | Navicula placenta Ehr. | [94] |
| 18-19 | Navicula inflexa Greg. | [96] |
| 20 | Navicula pinnata Pant.? | [96] |
| 21 | Navicula oblonga Kuetz. | [97] |
| 22 | Navicula pennata A. S. | [96] |
| 23 | Navicula pygmæa Kuetz. | [94] |
| 24 | Navicula humilis Donk. | [96] |
