| Name | Author | Source | Citation | Year |
|---|
| RHOICOSPHENIA | Grunow | image |
| Rhoicosphenia abbreviata | (C. Agardh) Lange-Bertalot | image |
| Rhoicosphenia abbreviata var. baltica | (Schumann) H. Pankow | Ostsee-Algenflora: | 242 | 1990 |
| Rhoicosphenia abbreviata var. elongata | (A. Cleve-Euler) M.A. Harper in Harper et al. | Phylum Ochrophyta ...: | 162 | 2012 |
| Rhoicosphenia abbreviata var. elongata | (Cleve-Euler) H. Pankow | Ostsee-Algenflora: | 243 | 1990 |
| Rhoicosphenia abbreviata var. fracta | (Schumann) H. Pankow | Ostsee-Algenflora: | 243 | 1990 |
| Rhoicosphenia adolfii_('adolfi') | M. Schmidt | image |
| Rhoicosphenia adriatica | Caput Mihalić & Levkov in Levkov, Caput Mihalić & Ector | Fottea | 10: 163, figs. 31a-aj, 32 | 2010 |
| Rhoicosphenia affinis | Levkov in Levkov, Caput Mihalić & Ector | Fottea | 10: 160, figs. 25, 26, 27 | 2010 |
| Rhoicosphenia assymmetrica | (Gutwinski) Gutwinski | image |
| Rhoicosphenia baicalensis | Skabichevskij | image |
| Rhoicosphenia californica | E.W. Thomas & J.P. Kociolek | Phytotaxa | 204: 11, figs. 75-110 | 2015 |
| Rhoicosphenia contracta | (Kützing) De Toni | Sylloge Algarum | 2: 438 | 1891 |
| Rhoicosphenia curvata | (Kützing) Grunow | image |
| Rhoicosphenia curvata f. marina | Heiden | image |
| Rhoicosphenia curvata f. maxima | Iwahashi | image |
| Rhoicosphenia curvata f. minor | M. Schmidt | image |
| Rhoicosphenia curvata var. aquatica | (Kützing) Rabenhorst | image |
| Rhoicosphenia curvata var. baicalensis | Skvortzov & Meyer | image |
| Rhoicosphenia curvata var. elongata | Cleve-Euler | Kongl. Svenska Vetensk.-Akad. Handl., ser. 4, | 4{5}: 52, fig. 601d,e | 1953 |
| Rhoicosphenia curvata var. fracta | (Schumann) Cleve | image |
| Rhoicosphenia curvata var. gracilis | M. Schmidt | image |
| Rhoicosphenia curvata var. linearis | Cleve-Euler | image |
| Rhoicosphenia curvata var. major | Cleve | image |
| Rhoicosphenia curvata var. marina | (Kützing) Grunow | image |
| Rhoicosphenia curvata var. pulvinata | (Kützing) Rabenhorst | image |
| Rhoicosphenia curvata var. salina | (Kützing) Rabenhorst | image |
| Rhoicosphenia curvata var. sessilis | Mereschkowsky | image |
| Rhoicosphenia curvata var. subacuta | M. Schmidt | image |
| Rhoicosphenia curvata var. subarcuata | M. Schmidt | image |
| Rhoicosphenia cuspidata | (Rabenhorst) De Toni | Sylloge Algarum | 2: 438 | 1891 |
| Rhoicosphenia flexa | Giffen | image |
| Rhoicosphenia fossilis | Cleve-Euler | image |
| Rhoicosphenia fracta | (Schumann) De Toni | Sylloge Algarum | 2: 438 | 1891 |
| Rhoicosphenia fracta var. baltica | Schumann | Schr. K. Phys.-Ökon. Ges. Königsberg | 8{Abh.}: 54, pl. I: fig. 19 | 1867 |
| Rhoicosphenia gandhii | E.W. Thomas, B. Karthick, & J.P. Kociolek in Thomas, Kociolek & Karthick | Diatom Research | 30: 36, figs. 1-23 | 2015 |
| Rhoicosphenia genuflexa | (Kützing) Medlin | image |
| Rhoicosphenia indica | E.W. Thomas, B. Karthick, & J.P. Kociolek in Thomas, Kociolek & Karthick | Diatom Research | 30: 37, figs. 24-46 | 2015 |
| Rhoicosphenia johannessoniae | A.Y. Al-Handal, Z. Levkov & A. Wulff | Phytotaxa | 618: 71, figs. 1-25 | 2023 |
| Rhoicosphenia kloseri | E.W. Thomas & R. Ligowski | Phytotaxa | 265: 51, figs. 1-104 | 2016 |
| Rhoicosphenia kolbei | A. Berg | image |
| Rhoicosphenia lacustris | Levkov in Levkov, Caput Mihalić & Ector | Fottea | 10: 159, figs. 22, 23, 24 | 2010 |
| Rhoicosphenia lesothensis | F.R. Schoeman | Diat. Lesotho: | 221, pl. 3: figs. 85-91 | 1973 |
| Rhoicosphenia lesothensis | Schoeman | image |
| Rhoicosphenia linearis Østrup | | image |
| Rhoicosphenia lowei | E.W. Thomas & J.P. Kociolek | Phytotaxa | 204: 6, figs. 38-74 | 2015 |
| Rhoicosphenia macedonica | Z. Levkov in Levkov, Krstic, Metzeltin & Nakov | Icon. Diatomol. | 16: 117, fig. 30: 1-17 | 2007 |
| Rhoicosphenia marina | (Kützing) M. Schmidt | image |
| Rhoicosphenia marina f. major | M. Schmidt | image |
| Rhoicosphenia marina f. minor | M. Schmidt | image |
| Rhoicosphenia marina var. heterostricta | M. Schmidt | image |
| Rhoicosphenia marina var. intermedia | M. Schmidt | image |
| Rhoicosphenia marina var. japonica | Skvortzov | Bot. Mag. [Tokyo] | 43: 59, fig. 8 | 1929 |
| Rhoicosphenia michalii_('michali') | R. Ligowski in Ligowski et al. | Phytotaxa | 191: 143, figs. 1-69 | 2014 |
| Rhoicosphenia omblaensis | Caput Mihalić & Levkov in Levkov, Caput Mihalić & Ector | Fottea | 10: 164, figs. 33a-t | 2010 |
| Rhoicosphenia patrickiae_('patrickae') | E.W. Thomas & J.P. Kociolek in Thomas, Kociolek & Karthick | Diatom Research | 30: 49, figs. 70-87 | 2015 |
| Rhoicosphenia pullus | M. Schmidt | image |
| Rhoicosphenia reimeri | E.W. Thomas & J.P. Kociolek in Thomas, Kociolek & Karthick | Diatom Research | 30: 43, figs. 47-69 | 2015 |
| Rhoicosphenia stauroneiformis | Salah | image |
| Rhoicosphenia stoermeri | E.W. Thomas & J.P. Kociolek | Phytotaxa | 204: 3, figs. 1-37 | 2015 |
| Rhoicosphenia tenuis | Z. Levkov & T. Nakov | Diatom Research | 23: 379, figs. 1-14, 30-49 | 2008 |
| Rhoicosphenia tenuissima Østrup | | image |
| Rhoicosphenia vanheurckii | Grunow in Van Heurck | Syn. Diat. Belgique: | pl. XXVI: figs. 5-9 | 1880 |
| RHOICOSPHENIACEAE | Chen & Zhu | image |
| RHOICOSPHENIACEAE | D. Mann | image |
| RHOICOSPHENIACEAE | Topachevs'kij & Oksiyuk | image |