| Name | Author | Source | Citation | Year |
|---|
| Chloromonas deceptionensis | H. Chae, H.G. Choi & Ji Hee Kim | Phycologia | 60: 227, figs. 1-10 | 2021 |
| Florella intermedia | (Grunow) C.S. Lobban, J.N. Navarro & T.M. Schuster | Nova Hedwigia | 112: 280 | 2021 |
| Florella lindigiana | (Grunow) C.S. Lobban, J.N. Navarro & T.M. Schuster | Nova Hedwigia | 112: 280 | 2021 |
| Fredericqia chiharae | Mas. Suzuki & T. Kitayama | Phycologia | 60: 211, figs. 2-14 | 2021 |
| Hypnea bullata | P. Kundu & F. Bast | Botanica Marina | 64(2): 139-148 | 2021 |
| Hypnea indica | P. Kundu & F. Bast | Botanica Marina | 64(2): 139-148 | 2021 |
| Karlodinium elegans | J.Y. Cen, S.H. Lu, & J.Y. Wang in Cen et al. | Journal of Oceanology and Limnology | 39: 245, figs. 2-8 | 2020 |
| Laminaria himantophylla | Postels & Ruprecht | Ill. alg. | 2, pl. 39: fig. 32 | 1840 |
| Ostravamonas greenwichensis | H. Chae, H.G. Choi & Ji Hee Kim | Phycologia | 60: 228, figs. 11-21 | 2021 |
| Phymatolithon atlanticum | S.Y. Jeong, G. Diaz-Pulido, B.Y. Won & T.O. Cho | Phycologia | 60: 201 figs. 2-23 | 2021 |
| Saccharina himantophylla | (Postels & Ruprecht) Kuntze | Rev. Gen. Pl. | 2: 915 | 1891 |
| Saundersella crassa | H. Kawai, Yuki Watanabe & T. Hanyuda | Phycologia | 60: 280, figs. 3, 6-11 | 2021 |
| Saundersella hattoriana | (Tokida) H. Kawai & T. Hanyuda in Kawai, Watanabe & Hanyuda | Phycologia | 60: 280 | 2021 |
| Striatella intermedia | Grunow | Hedwigia | 6: 6, no fig. | 1867 |
| Striatella lindigiana | Grunow | Hedwigia | 6: 6, no fig. | 1867 |
| Triparma papillosa | K. Hoshina & R.W. Jordan in Hoshina et al. | Phycologia | 60: 221, figs. 43-50 | 2021 |
| Triparma scotiaensis | K. Hoshina & R.W. Jordan in Hoshina et al. | Phycologia | 60: 222, figs. 51-58 | 2021 |
| Triparma strigata f. brevispina | K. Hoshina & R.W. Jordan in Hoshina et al. | Phycologia | 60: 217, figs. 11-18 | 2021 |
| Triparma strigata f. subarctica | K. Hoshina & R.W. Jordan in Hoshina et al. | Phycologia | 60: 217, figs. 19-26 | 2021 |
| Triparma verrucosa f. boothiae | K. Hoshina & R.W. Jordan in Hoshina et al. | Phycologia | 60: 220, figs. 35-42 | 2021 |