| Name | Author | Source | Citation | Year |
|---|
| TETMEMORUS | (Ralfs ex Ralfs) | image |
| TETMEMORUS | (Ralfs) Gay | image |
| TETMEMORUS | (Ralfs) Kützing | image |
| TETMEMORUS | John Ralfs | image |
| TETMEMORUS | Ralfs ex Ralfs | Brit. Desmid.: | 145 | 1848 |
| Tetmemorus brebissonii | (Menegh.) Ralfs | image |
| Tetmemorus brebissonii f. minor | (de Bary) Kossinkaya | image |
| Tetmemorus brebissonii f. minutus | Magnotta | image |
| Tetmemorus brebissonii | Ralf ex Ralfs | image |
| Tetmemorus brebissonii var. ansatiformis | M. Hirano | Contrib. Biol. Lab. Kyoto Univ. | 28: 22, pl. 22: fig. 2 | 1992 |
| Tetmemorus brebissonii var. attenuatus | Nordstedt | image |
| Tetmemorus brebissonii var. attenuatus | Nordstedt | image |
| Tetmemorus brebissonii var. granulatus | J. Sampaio | image |
| Tetmemorus brebissonii var. intermedius | Flensburg | Acta Phytogeogr. Suec. | 51: 70, pl. I:d | 1967 |
| Tetmemorus brebissonii var. major_('majus') | G. Sampaio | image |
| Tetmemorus brebissonii var. minimus_('minimum') | West & West | image |
| Tetmemorus brebissonii var. minor de | Bary | image |
| Tetmemorus brebissonii var. minor | Rabenhorst | Alg. Sachs. Dec. | 71/72: no. 705f | 1858 (Sept.) |
| Tetmemorus brebissonii var. tenuissimus_('tenuissima') | Moebius | image |
| Tetmemorus brebissonii var. turgidus | Ralfs | image |
| Tetmemorus euastroides | Scott & Prescott | image |
| Tetmemorus euastroides var. africanus | P.F.M. Coesel & A. Van Geest | Syst. Geogr. Pls. | 78: 32, fig. 7 | 2008 |
| Tetmemorus fissus | W. West & G.S. West | image |
| Tetmemorus flensburgii | M. Van Westen | Phytotaxa | 238: 237 | 2015 |
| Tetmemorus furcatus | G.J.P. Ramos & C.W.N. Moura in Ramos et al. | Phytotaxa | 391: 194, 63-65 | 2019 |
| Tetmemorus giganteus | H.C. Wood | Proc. Acad. Nat. Sci. Philad. | 1869[21], Biol. & Micr. Dept.: 19 | 1870 |
| Tetmemorus giganteus | Wood | image |
| Tetmemorus gracilis | Playfair | image |
| Tetmemorus granulatus | (Brébisson) Ralfs | image |
| Tetmemorus granulatus f. basichondrus_('basichondra') | Schmidle | image |
| Tetmemorus granulatus f. crassus_('crassa') | Auclair | image |
| Tetmemorus granulatus f. latus_('lata') | Ducellier | image |
| Tetmemorus granulatus f. major | Deflandre | image |
| Tetmemorus granulatus f. minor | Maskell | image |
| Tetmemorus granulatus f. minor | Nordstedt | image |
| Tetmemorus granulatus | Ralfs ex Ralfs | image |
| Tetmemorus granulatus var. attenuatus | W. West | image |
| Tetmemorus granulatus var. constrictus | K. Förster | Amazoniana | 2: 29, pl. 5: fig. 24 | 1969 |
| Tetmemorus granulatus var. elongatus | W. Krieger | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 13(1,3): 460, pl. 55: fig. 7 | 1937 |
| Tetmemorus granulatus var. minor | Jacobsen | image |
| Tetmemorus immanis | Playfair | image |
| Tetmemorus intermedius | Woronichin | image |
| Tetmemorus laevis | (Kützing) Ralfs | image |
| Tetmemorus laevis f. borgei | Förster | image |
| Tetmemorus laevis f. brunneus | Förster & Eckert | image |
| Tetmemorus laevis f. sparse-punctatus_('sparse-punctata') | Schmidle | image |
| Tetmemorus laevis | Ralfs | Brit. Desmid.: | 146, pl. XXIV: fig. 3 | 1848 |
| Tetmemorus laevis | Ralfs ex Ralfs | image |
| Tetmemorus laevis var. attenuatus | Wille | image |
| Tetmemorus laevis var. bifidus | Gutwinski | image |
| Tetmemorus laevis var. borgei | K. Förster | Khumbu Himal; Ergebnisse | 2: 35 | 1965 |
| Tetmemorus laevis var. continuus_('continuum') | Nordstedt | image |
| Tetmemorus laevis var. intermedius | (Woronichin) Ruzicka | image |
| Tetmemorus laevis var. major | Roll | image |
| Tetmemorus laevis var. minutus | (De Bary) W. Krieger | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 13(1,3): 457 | 1937 |
| Tetmemorus laevis var. ornatus | Schmidle | image |
| Tetmemorus laevis var. planctonicus | Förster | image |
| Tetmemorus laevis var. planctonicus | K. Förster ex K. Förster | Arch. Hydrobiol. Suppl. | 60(3) (Algol. Stud. 28): 233 | 1981 |
| Tetmemorus laevis var. planctonicus | K. Förster | Amazoniana | 5: 154, pl. 2: figs. 13-17 | 1974 |
| Tetmemorus laevis var. tropicus | W. Krieger | Rabenhorst's Krypt.-Fl. Deutschl., 2.Aufl., | 13(1,3): 457, pl. 54: fig. 13-15 | 1937 |
| Tetmemorus latus | W.B. Turner | image |
| Tetmemorus minor | (de Bary) Laporte | image |
| Tetmemorus minutus | De Bary | Untersuch. Conjugaten: | 74, pl. V: fig. 10 | 1858 |
| Tetmemorus penioides | Bennett | image |
| Tetmemorus planctonicus | (K. Förster) K. Förster | Arch. Hydrobiol. Suppl. | 60(3) (Algol. Stud. 28): 247 | 1981 |
| Tetmemorus pseudoeuastroides | P. Bourrelly & A. Couté | Biblioth. Phycol. | 86: 9, 184, pl. II: fig. 2 | 1991 |