Species (22.489)
- Mallomonas limax Moroff ()
- Sphenoderia lenta Schlumberger 1845
- Hartmanella leptocnemus Singh 1952
- Saccamoeba limax Dujardin 1841
- Euglena limnophila Lemmermann ()
- Euglyphella lineare Schönborn
- Valkanovia lineare
- Stachyamoeba lipophora Page 1975
- Cyclopyxis lithostoma Bonnet 1974
- Vahlkampfia lobospina Craig 1912
- Bullinularia lithostoma Bonnet
- Bodo compressus Lemmermann ()
- Ancyromonas contorta Klebs ()
- Salpingoeca convallaria Stein ()
- Streptomonas cordata Perty ()
- Centropyxis cordiformis Couteaux
- Cercomonas crassicauda Dujardin ()
- Ochromonas crenata Klebs ()
- Cryoptdifflugia crenulata
- Actinosphaerium eichhornii Ehrenberg 1840 ssp. eichhornii
- Hartmanella crumpae Singh & Hanumaiah 1979
- Plagiopyxis cryptoblonga Bonnet
- Centropyxis cryptostoma Bonnet 1959
- Astasia curvata Klebs ()
- Chlamydomonas cullens Ettl ()
- Euglypha cuspidata Bonnet 1959
- Cephalothamnium cyclopum Stein ()
- Polytoma cylindraceum Pascher ()
- Nebela cylindrica Bonnet
- Oikomonas dallingeri Kent ()
- Carteria dangeardii Troitzkaja ()
- Monas dangeardii Lemmermann ()
- Chlamydomonas depauperata Pascher ()
- Tetramitus descissus Perty 1852
- Phalansterium digitatum Stein ()
- Sappinia diploidea Hartmann & Nägler 1908
- Cercobodo digitalis Meyer ()
- Allas diplophysa Sandon ()
- Quadrula discoides
- Dallingeria drysdali Kent ()
- Cryptodifflugia eboracensis
- Bodo edax Klebs ()
- Chlamydomonas ehrenbergii Goroschanki ()
- Physomitus elongata Stokes ()
- Monas elongata Stokes ()
- Chlorogonium elongatum Dangeard ()
- Euglyphidion enigmaticum Bonnet 1960
- Vahlkampfia erythaenusa Singh 1952
- Helkesimastix faecicola Woodcock ()
- Proleptomonas faecicola Woodrock ()
- Difflugia fallax Ehrenberg 1871
- Thecochaos fibrillosum Greeff 1891
- Protoplagiopyxis delamarei Bonnet 1962
- Corythion delamarei Bonnet & Thomas 1960
- Pseudawerintzewia deharvengi Bonnet 1977
- Gephryamoeba delicatula Goodey 1914
- Sphenoderia dentata
- Euglyphella elegans Schönborn
- Planhoogenraadia elegans Bonnet
- Euglena elongata Schewiakoff ()
- Chlorogonium euchlorum Ehrenberg ()
- Rhizamoeba flabellata Goodey 1914
- Microcorycia flava Greeff
- Pocheina flagellata Stoianovitch, Olive & Bennett 1983
- Sphenoderia fissirostris Penard 1890
- Chromulina flavicans Bütschli ()
- Archerella flavum
- Difflugia inflata Penard 1899
- Hexamita inflata Dujardin ()
- Ciliophrys infusionum Cienkowski ()
- Euglena intermedia Klebs ()
- Plagiopyxis intermedia Bonnet 1959
- Mallomonas invertens Klebs ()
- Leptomonas jaculum Léger ()
- Pleuromonas jaculans Perty ()
- Quadrula irregularis
- Rosculus ithacus Hawes 1963
- Vahlkampfia jugosa Page 1967
- Paratetramitus jugosus Page 1967
- Amphora ovalis
- Cyclopyxis lapponica
- Heleopera lata Cash
- Phacus lognicaudata Ehrenberg ()
- Chlamydomonas longeovalis Pascher ()
- Mallomonas longifilum Stokes ()
- Polytoma longistimga Grandori R. & Grandori L. ()
- Colponema loxodes Stein ()
- Geamphorella lucida Bonnet 1959
- Sahnium lucknowensis Singh, Misra & Sharma 1982
- Cyclopyxis machadoi Bonnet 1965
- Difflugia magna Aescht & Foissner 1989
- Centropyxis capucina Bonnet 1975
- Difflugia carinata
- Planhoogenraadia cantabria Bonnet & Gomez-Sanchez
- Lamtopyxis cassagnaui Bonnet 1977
- Euglypha castri Bonnet
- Bodo caudatus Dujardin ()
- Bodo celer Klebs ()
- Geoplagiopyxis chardezi Decloitre
- Trinema chavannesi Decloitre