| Aulacoseira Thwaites, 1848 |
| Aulacoseira agassizii (Ostenf.) Simonsen, 1979 |
| Aulacoseira ambigua (Grunow) Simonsen, 1979 |
| Aulacoseira distans (Ehrenb.) Simonsen, 1979 |
| Aulacoseira granulata (Ehrenb.) Simonsen, 1979 |
| Aulacoseira granulata var. angustissima (O.F. Müll.) Simonsen, 1979 |
| Aulacoseira periphytica Novelo, Tavera & Ibarra, 2007 |
| Lysigonium Link, 1820 |
| Melosira C. Agardh, 1824 |
| Melosira ambigua (Grunow) O.F. Müll., 1903 |
| Melosira costata Grev., 1866 |
| Melosira crenulata (Ehrenb.) Rabenh., 1853 |
| Melosira distans (Ehrenb.) Kütz., 1844 |
| Melosira dubia Kütz., 1844 |
| Melosira expectata A.W.F. Schmidt, 1892 |
| Melosira fennoscandica Cleve-Euler, 1943 |
| Melosira granulata (Ehrenb.) Ralfs, 1861 |
| Melosira islandica O.F. Müll., 1906 |
| Melosira jurgensii C. Agardh, 1824 |
| Melosira lineata (Dillwyn) C. Agardh, 1824 |