| Fig. | | Page |
| DICTYONEIS |
| 1 | Dictyoneis marginata var. maxima n. var. | 79 |
| 2 | Dictyoneis marginata var. commutata Cleve. | 79 |
| 3 | Dictyoneis marginata var. typica Cleve. | 78 |
| DIPLONEIS |
| 4 | Diploneis crabro var. pandura (BrÉb.) Cl. | 85 |
| 6 | Diploneis campylodiscus (Grun.) Cl. | 86 |
| 7-8 | Diploneis gruendleri (A. S.) Cl. | 85 |
| 9 | Diploneis crabro Ehr. var.? | 85 |
| 10 | Diploneis excentrica n. sp. | 85 |
| 11 | Diploneis fusca var. delicata (A. S.) Cl. | 85 |
| 12 | Diploneis puella (Schum.) Cl. | 85 |
| 13 | Diploneis crabro var. pandurella Cl.? | 85 |
| 14 | Diploneis elliptica (Kuetz.) Cl. | 84 |
| 15 | Diploneis crabro var. expleta (A. S.) Cl. | 85 |
| 16 | Diploneis geminata (Grev.) Cl. | 86 |
| 17 | Diploneis smithii (BrÉb.) Cl. | 84 |
| NAVICULA |
| 5 | Navicula lyra Ehr. var.? | 93 |
