English
Species (22.489)
Semifolliculina gigantea Dons 1914- Semifolliculina mirabilis Dons 1918
- Semifolliculina simplex Dons 1918
- Sphaerophrya fixa Dumas 1930
- Sphaerophrya magna Maupas 1881
- Sphaerophrya nigra Dumas 1930
- Sphaerophrya discoides Dumas 1930
- Sphaerophrya orbiculata Dumas 1930
- Sphaerophrya oblongua Dumas 1930
- Sphaerophrya parurolepti Foissner 1980
- Sphaerophrya parva Greeff 1888
- Sphaerophrya pusilla Claparède & Lachmann 1859
- Sphaerophrya pyriformis Dumas 1930
- Sphaerophrya quadripartita Dumas 1930
- Sphaerophrya soliformis Lauterborn 1908
- Sphaerophrya rotundata Dumas 1930
- Sphaerophrya terricola Foissner 1986
- Spirochona tintinnabulum Kent 1881
- Spirochona tuba Swarczewsky 1928
- Spirocochlearia faurei Collin 1909
- Spirodinium equi Fiorentin 1890
- Spirocorys indicus Wolska 1969
- Spirodinium confusum Hsiung 1935
- Spirodinium ferrum Strelkow 1931
- Spirodinium nanum Strelkow 1931
- Spirodinium uninucleatum Hsiung 1935
- Spirofilopsis tubicola Gruber 1879
- Spirofilopsis tubicolonatans Corliss 1960
- Spirofilum tisiae Gelei 1929
- Spirofilum tubicola-natans Gelei 1944
- Spirogonella filum Ehrenberg ()
- Spironectum teres Claparède & Lachmann 1858
- Spiroprorodon glacialis Fenchel & Lee 1972
- Spirophrya subparasitica Chatton & Lwoff 1924
- Spirorhynchus verrucosus Cunha 1915
- Spirostomina lucida Gruber 1884
- Spirostomum caudatum Müller 1786
- Spirostomum bifidum Dumas 1929
- Spirostomum crassum Kahl 1927
- Spirostomum cylindricum Dumas 1930
- Spirostomum intermedium Kahl 1932
- Spirostomum filum Ehrenberg 1838
- Spirostomum inflatum Kahl 1932
- Semiplatyophrya foissneri Wilbert & Kahan 1986
- Seravinella pectinata Alekperov & Mamajeva 1992
- Setarcon pedicellatum Hincks 1873
- Sertularia polypina Linnaeus 1758
- Setonophrys tricorniculata Clamp 1991
- Setonophrys lingulata Kane 1965
- Severonis spongiarum Jankowski 1981
- Shellephelota branchialis Jankowski 1981
- Siagonophorus euglenoides Eberhard 1858
- Shellositon branchialis Jankowski 1993
- Siagonophorus loricatus Eberhard 1862
- Siagontherium tenue Perty 1852
- Sibiracineta endemica Jankowski 1982
- Sigmocineta nordica Jankowski 1967
- Sigalasia sigalasiorum Delphy 1938
- Sigmostomum indicum Gulati 1925
- Sigmophrya eudrili Puytorac 1969
- Silenella ovoidea Fenchel 1965
- Sincothurnia sinuosa Wailes 1943
- Sinocothurnia imberis Jankowski 1985
- Siphonocalyx urnula Nenninger 1948
- Sisyridion cochliostoma Eberhard 1862
- Solenophrya alata Stokes 1890
- Solenophrya crassa Claparède & Lachmann 1859
- Solenophrya crumilla Dumas 1930
- Solenophrya flavescens Penard 1914
- Solenophrya massula Penard 1914
- Solenophrya inclusa Stokes 1885
- Solenophrya odontophora Stokes 1887
- Solenophrya pera Stokes 1885
- Solenophrya sacculus Penard 1914
- Sonderia cyclostoma Kahl 1930
- Sonderia labiata Faure-Fremiet & Tuffrau 1955
- Spathidioides carinata Kahl 1930
- Spathidiella euglenivora Kahl 1930
- Spathidioides exsecata Kahl 1930
- Spathidiella rigida Kahl 1930
- Spathidioides sulcata Brodsky 1925
- Spathidiopsis distoma Kahl 1926
- Spathidiopsis socialis Fabre-Domergue 1889
- Spathidium alpinum Gellert 1956
- Spathidium amphoriforme Kahl 1930 ssp. rectitoratum
- Spathidium amphoriforme Kahl 1930 ssp. securiforme
- Spathidium antennatum Kahl 1926
- Spathidium asciola Kahl 1930
- Spathidium ascendens Wenzel 1955
- Spathidium anguilla Vuxanovici 1962
- Spathidium barbatula Penard 1922
- Spathidium atypicum Buitkamp & Wilbert 1974
- Spathidium bavariense Kahl 1930
- Spathidium binucleatum Lepsi 1962
- Spathidium breve Kahl 1930
- Spathidium bonneti Buitkamp 1977
- Spathidium brunneum Kahl 1926
- Spathidium canaliculatum Lepsi 1959
- Spathidium capitulum Kahl 1930
- Spathidium caudatum Wetzel 1927
