Van Heurck -- Synopsis des Diatomées de Belgique -- Index
| Achnanthidium | coarctatum Bréb. = Achnanthes coarctata (Bréb.) Grunow | Page -- | Plate 26 | Figure17,18,19,20 | |
| Achnanthidium | cryptocephalum Nägeli ? = Achnanthes minutissima var. cryptocephala Grunow | Page -- | Plate 27 | Figure 41,42,43,44 | Note 3 |
| Achnanthidium | delicatulum Kütz. = Achanthes delicatula (Kütz.) Grunow | Page -- | Plate 27 | Figure 3,4 | |
| Achnanthidium | flexellum Bréb. | Page 128 | Plate 26 | Figure 29.30,31 | |
| Achnanthidium | jackii Rabenh. = Achnanthes linearis var. jackii (Rabenh.) Grunow | Page -- | Plate 27 | Figure 24 | |
| Achnanthidium | lanceolatum Bréb. = Achnanthes lanceolata (Bréb.) Grunow | Page -- | Plate 27 | Figure 8,9,10,11 | |
| Achnanthidium | linearis W. Sm. = Achnanthes linearis (W. Sm.) Grunow | Page -- | Plate 27 | Figure 31,32 | |
| Achnanthidium | microcephalum Kütz. = Achnanthes microcephala (Kütz.) Grunow | Page -- | Plate 27 | Figure 20,21,22,23 | |
| Achnanthidium | microcephalum W. Sm. ? = Navicula microcephala Grunow | Page -- | Plate 14 | Figure 29 | |
| Achnanthidium | trinodis Arn. = Achnanthes trinodis (Arn.) Grunow | Page -- | Plate 27 | Figure 50,51,52 |