| Fragilariforma bicapitata (A. Mayer) D.M. Williams & Round, 1988 |
| Fragilariforma virescens (Ralfs) D.M. Williams & Round, 1988 |
| Martyana Round, 1990 |
| Martyana atomus (Hust.) Snoeijs, 1991 |
| Martyana martyi (Hérib.) Round, 1990 |
| Martyana schulzii (C. Brockmann) Snoeijs, 1991 |
| Odontidium Kütz., 1844 |
| Odontidium marinum Grunow, 1862 |
| Pseudo-eunotia Grunow, 1881 |
| Pseudo-eunotia doliolus (G.C. Wall.) Grunow, 1881 |
| Reimerothrix A.K.S. Prasad, 2001 |
| Reimerothrix floridensis A.K.S. Prasad, 2001 |
| Synedra Ehrenb., 1830 |
| Synedra acicularis Kütz., 1844 |
| Synedra actinastroides (Lemmerm.) Lemmerm., 1900 |
| Synedra acus Kütz., 1844 |
| Synedra affinis Kütz., 1844 |
| Synedra amphicephala Kütz., 1844 |
| Synedra amphirhynchus Ehrenb., 1843 |
| Synedra bilunaris Ehrenb., 1832 |