Species (15.149)
- Lagynophrya fusidans Kahl 1927
- Lagynophrya costata Kahl 1933
- Lagynophrya geleii Foissner 1981
- Lagynophrya gibba Kahl 1935
- Lagynophrya fusidens Kahl 1927
- Lagynophrya halophila Kahl 1930
- Lagynophrya maxima Burkovsky 1970
- Lagynophrya mucicola Kahl 1927
- Lagynophrya retractilis Kahl 1927
- Lagynophrya rigida Tucolesco 1962
- Lagynophrya mutans Kahl 1927
- Lagynophrya perlata Tucolesco 1962
- Lagynophrya rostrata Kahl 1927
- Lagynophrya salina Kirby 1932
- Lagynophrya trichocystis Foissner 1981
- Lagynurus pumilis Mansfeld 1923
- Lagynurus pumilo Mansfeld 1923
- Lagynophrya simplex Kahl 1927
- Lagynus armatus Kahl 1926
- Acanthodiophrya almae Puytorac & Dragesco 1969
- Limnias sp. Oken 1815
- Limnostrombidium pelagicum Kahl 1932
- Limnoricus ceter Jankowski 1981
- Limnostrombidium viride Stein 1867
- Linostoma vorticella Ehrenberg 1833
- Linostomella vorticella Ehrenberg 1833
- Linza pruniformis Schrank 1803
- Lionotus anguilla Kahl 1931
- Lionotus anas Levander 1894
- Litonotus anguilloides Srámek-Husek 1957
- Litonotus alpestris Foissner 1978
- Litonotus anguillus Kahl 1931
- Litonotus crinitus Grandori & Grandori 1934
- Litonotus carinatus Stokes 1885
- Litonotus cygnus Müller 1773
- Litonotus crystallinus Vuxanovici 1960
- Litonotus digitatus Grandori & Grandori 1934
- Litonotus duplostriatus Maupas 1883
- Litonotus fasciola Müller 1773
- Lembus moebii Kahl 1926
- Lembus ornatus Smith 1899
- Lembus punctatus Kahl 1928
- Lembus pusillus Quennerstedt 1869
- Lembus putrinus Kahl 1928
- Lembus reesi Kahl 1931
- Lembus scaber Penard 1922
- Lembus stichotricha Kahl 1928
- Lembus subulatus Kent 1881
- Leprotintinnus bottnicus Nordqvist 1890
- Leprotintinnus nordqvisti Brandt 1906
- Leprotintinnus neriticus Campbell 1926
- Leprotintinnus simplex Schmidt 1901
- Leptodiscus miriabilis Tucolesco 1962
- Leptopharynx macrostoma Njine 1979
- Leptopharynx minimus Alekperov 1993
- Leptopharynx opaca Detcheva 1972
- Leptopharynx stenostoma Gellert 1942
- Lernaeophrya capitata Perez 1903
- Leucophrydium putrinum Roux 1899
- Leucophrys anodontae Ehrenberg 1838
- Leucophrys carnicum Ehrenberg 1836
- Leucophrys clavata Leidy 1850
- Leucophrys curvilata Stokes 1886
- Leucophrys emarginatum Stokes 1858
- Leucophrys patula Ehrenberg 1830
- Leucophrys patulua Claparède & Lachmann 1858
- Leucophrys pyriformis Ehrenberg 1830
- Leucophrys sanguinea Müller 1786
- Leucophrys spatula Müller 1773
- Levanderella rodentium Kopperi 1935
- Licnophora auerbachii Cohn 1866
- Licnophora asterisci Gruber 1884
- Licnophora bullae Dustin 1915
- Lembus striatus Cohn-Fabre 1885
- Lembus velifer Cohn 1866
- Lembus verminus Müller 1786
- Lembus vexillarius Kahl 1926
- Lembus vexillifer Entz 1879
- Lepidotrachelophyllum fornicis Nicholls & Lynn 1984
- Lepidotrachelophyllum lineare Lepsi 1960
- Leprotintinnus pellucidus Cleve 1899
- Leptodesmus tenellus Zacharias 1903
- Leucophrys ovum Faure-Fremiet 1924
- Leucophrys tetraedrica Faure-Fremiet 1924
- Licnophora cohni Claparède 1867
- Licnophora conklini Stevens 1904
- Licnophora europaea Garbini 1898
- Licnophora macfarlandi Stevens 1904
- Licnophora setifera Maskell 1886
- Liliimorpha viridis Gajewskaja 1928
- Trimyema compressum Lackey 1925
- Lionotus anaticula Claparède & Lachmann 1859
- Lionotus armilatus Penard 1922
- Lionotus binucleatus Wenzel 1953
- Lionotus branchiarum Wenrich 1924
- Lionotus carinatus Stokes 1885
- Lionotus cygnus Müller 1776
- Lionotus diaphanes Wrzesniowski 1870
- Lionotus crinitus Grandori & Grandori 1934
- Lionotus digitatus Grandori & Grandori 1934