| Name | Author | Source | Citation | Year |
|---|
| KEPHYRION | Pascher | image |
| Kephyrion aestivum | Skvortzov | image |
| Kephyrion amphorula | Conrad | image |
| Kephyrion ampulla | (Skuja) Bourrelly | image |
| Kephyrion annulatum de | Graaf | image |
| Kephyrion asperum_('asper') | (Lackey) Bourrelly | image |
| Kephyrion autumnale | Skvortzov | image |
| Kephyrion bacilliforme | Conrad | image |
| Kephyrion blatnense | (Fott) Fott | image |
| Kephyrion boreale | Skuja | image |
| Kephyrion brunneum | Skvortzov | image |
| Kephyrion campanuliforme | Conrad | image |
| Kephyrion campanuliforme | Khmeleva | image |
| Kephyrion campanuliforme_('campanulaeforme') | Khmeleva | Nov. Sist. Nizsh. Rast. [Bot. Inst. Akad. Nauk SSSR] | 1964: 18, fig. 9 | 1964 |
| Kephyrion cinctum | (Lackey) Bourrelly | image |
| Kephyrion circumvallatum | (Schiller) Bourrelly | image |
| Kephyrion colliferum de | Graaf | image |
| Kephyrion cupuliforme | Conrad | image |
| Kephyrion cylindricum var. fluctuosum | Hortobágyi | image |
| Kephyrion cylindricum_('cylindrica') | (Lackey) Conrad | image |
| Kephyrion densatum | (G. Schmid) Bourrelly | image |
| Kephyrion doliolum | Conrad | image |
| Kephyrion formosissimum | (Conrad) Fott | image |
| Kephyrion francevi | Guseva | image |
| Kephyrion globosum | (Czosnowski) Bourrelly | image |
| Kephyrion helix | Conrad mscr. | image |
| Kephyrion hemisphaericum_('hemisphaerica') | (Lackey) Conrad | image |
| Kephyrion heverlense_('heverlensis') | (Conrad) Fott | image |
| Kephyrion hilliardii | Nicholls | image |
| Kephyrion hispidum | Skvortzov | image |
| Kephyrion impletum | Nygaard | image |
| Kephyrion inconstans | (G. Schmid) Bourrelly | image |
| Kephyrion khmelevae | Molinari & Guiry | Notulae algarum | 184: 7 | 2021 |
| Kephyrion laticollis | (Conrad) Bourrelly | image |
| Kephyrion latum | Skvortzov | image |
| Kephyrion littorale | J.W.G. Lund | image |
| Kephyrion mastigophorum | Gerlinde Schmid | image |
| Kephyrion matvienkoae_('matvienkoi') | Skvortzov | image |
| Kephyrion moniliferum | (G. Schmid) Bourrelly | image |
| Kephyrion mosquense_('mosquensis') | Guseva | image |
| Kephyrion obliquum | Hilliard | image |
| Kephyrion ovale | (Lackey) Huber-Pestalozzi | image |
| Kephyrion ovale var. fluctuosum | Hortobágyi | image |
| Kephyrion ovoides | (Conrad) Fott | image |
| Kephyrion ovum | Pascher | image |
| Kephyrion parvulum | (G. Schmid) Bourrelly | image |
| Kephyrion petasatum | Conrad | image |
| Kephyrion planktonicum | Hilliard | image |
| Kephyrion poculum | (Conrad) Fott | image |
| Kephyrion prismaticum | Conrad | image |
| Kephyrion rubri-claustri | Conrad | image |
| Kephyrion rubri-claustri var. amphora | (Lackey) Conrad | image |
| Kephyrion rubri-claustri var. valkanovii | (Huber-Pestalozzi) L. S. Péterfi | image |
| Kephyrion schmidii | Bourrelly | image |
| Kephyrion sitta | Pascher | image |
| Kephyrion skujae | Ettl | image |
| Kephyrion spinosum | Hada | image |
| Kephyrion spirale | (Lackey) Conrad | image |
| Kephyrion starmachii | (Czosnowski) Bourrelly | image |
| Kephyrion translucens | Fott | image |
| Kephyrion truncatum | Skvortzov | image |
| Kephyrion tubiforme | Fott | image |
| Kephyrion valkanovii_('Valkanovi') | Huber-Pestalozzi | image |
| Kephyrion velatum | Conrad | image |
| KEPHYRIONIIDAE | Hada | image |
| PSEUDOKEPHYRION | Pascher | image |
| Pseudokephyrion acutum | Schiller | image |
| Pseudokephyrion alaskanum | Hilliard | image |
| Pseudokephyrion ampullaceum | Conrad | image |
| Pseudokephyrion angulosum | Hilliard | image |
| Pseudokephyrion attenuatum | Hilliard | image |
| Pseudokephyrion auroreum | K. Nicholls | J. Phycol. | 13: 412, figs. 2f-h, 3d | 1977 |
| Pseudokephyrion blatnense | Fott | image |
| Pseudokephyrion cinctum | (Schiller) Gerlinde Schmid | image |
| Pseudokephyrion circumcisum | Conrad | image |
| Pseudokephyrion circumvallatum | Bourrelly | image |
| Pseudokephyrion conicum | (Schiller) Gerlinde Schmid | image |
| Pseudokephyrion conicum | Schiller | image |
| Pseudokephyrion cylindricum | Bourrelly | image |
| Pseudokephyrion densatum | J. Schiller | Schweiz. Z. Hydrol. | 14: 458, fig. 4 | 1952 |
| Pseudokephyrion depressum | Gerlinde Schmid | image |
| Pseudokephyrion doliolum | J. Schiller | Schweiz. Z. Hydrol. | 14: 457, fig. 3 | 1952 |
| Pseudokephyrion elegans | (Conrad) Conrad | image |
| Pseudokephyrion ellipsoideum | (Pascher) Conrad | image |
| Pseudokephyrion entzii | Conrad | image |
| Pseudokephyrion entzii f. granulatum_('granulata') | Bourrelly | image |
| Pseudokephyrion formosissimum | Conrad | image |
| Pseudokephyrion gallicum | Bourrelly | image |
| Pseudokephyrion gibbosum | Ramberg | image |
| Pseudokephyrion heverlense | (Conrad) Conrad | image |
| Pseudokephyrion hiemale | Hilliard | image |
| Pseudokephyrion hyalinum | Hilliard | image |
| Pseudokephyrion hyalinum var. tubiforme | Ettl | image |
| Pseudokephyrion hypermaculatum | Ettl | image |
| Pseudokephyrion inflatum | Hilliard | image |
| Pseudokephyrion klarnetii | Bourrelly | image |
| Pseudokephyrion latum | (Schiller) Gerlinde Schmid | image |
| Pseudokephyrion longum | J. Schiller | Schweiz. Z. Hydrol. | 14: 459, fig. 5 | 1952 |
| Pseudokephyrion millerense | Nicholls | image |
| Pseudokephyrion minutissimum | Conrad | image |
| Pseudokephyrion obtusum | Gerlinde Schmid | image |
| Pseudokephyrion ornatum | (Conrad) Conrad | image |
| Pseudokephyrion ovum | (Pascher & Rüttner) Conrad | image |
| Pseudokephyrion parvum | Hilliard | image |
| Pseudokephyrion pawlowskii | J. Siemińska | Fragm. Floristic. Geobot. | 16: 184, figs. 10-13 | 1970 |
| Pseudokephyrion pilidium f. spirale_('spiralis') | R. Gołdyn | Fragm. Florist. Geobot. | 34: 221, pl. V: fig. 22 | 1988 |
| Pseudokephyrion pilidium | Schiller | image |
| Pseudokephyrion planctonicum | Hilliard | image |
| Pseudokephyrion poculiforme | J. Ikavalko, H.A. Thomsen & M. Carstens | Arch. Protistenk. | 147: 35, figs. 18-21 | 1996 |
| Pseudokephyrion poculum | Conrad | image |
| Pseudokephyrion pseudospirale | Bourrelly | image |
| Pseudokephyrion pulcherrimum | Schiller | image |
| Pseudokephyrion ruttneri_('rüttneri') | (Schiller) Gerlinde Schmid | image |
| Pseudokephyrion schilleri | Conrad | image |
| Pseudokephyrion schilleri var. poculiforme | Androssova | image |
| Pseudokephyrion simus | Hortobagyi | image |
| Pseudokephyrion skujae | Bourrelly | image |
| Pseudokephyrion spirale | Gerlinde Schmid | image |
| Pseudokephyrion striatum | Hilliard | image |
| Pseudokephyrion taeniatum | K. Nicholls | J. Phycol. | 13: 410, figs. 2a-e, 3a-c | 1977 |
| Pseudokephyrion tatricum | (Juris\*v) Starmach | Flora Słodkowodna Polski | 5: 216 | 1968 |
| Pseudokephyrion tenerum | F. Wawrik | Phyton (Austria) | 27: 204, fig. 5j-k | 1987 |
| Pseudokephyrion tintinnabulum | Conrad | image |
| Pseudokephyrion tortosaccatum | J.W.G. Lund | image |
| Pseudokephyrion undulatissimum | Scherffel | image |
| Pseudokephyrion undulatum [(Klebs)] | Pascher | image |
| Pseudokephyrion urnula | Conrad | image |
| Pseudokephyrion verrucosum | Hortobagyi | image |
| PSEUDOKEPHYRIONOPSIS | Palik | image |
| Pseudokephyrionopsis tortonica | Palik | image |