Living in the water.

Mammals (4)

†Indohyus (Genus) Ranga Rao, 1971

Lontra felina (Molina, 1782) - marine otter

Lontra provocax (Thomas, 1908) - southern river otter

†Phascolodon (Genus) Simpson, 1925, nom. praeocc.

Birds (1)

†Gansus yumenensis Hou & Liu, 1984

Reptiles (3)

†Nichollsia borealis 2008

†Plesiosauria (Order) de Blainville, 1835 - plesiosaurs

†Titanoboa cerrejonensis J.J. Head et al., 2009

Fishes (6)

†Antennarius monodi G. Carnevale & T.W. Pietsch, 2006

Aphyonus gelatinosus Günther, 1878

Elacatinus jarocho M.S. Taylor & L. Akins, 2007

Glyptothorax exodon H.H. Ng & I. Rachmatika, 2005

Hemiscyllium galei - bamboo shark

Pseudotocinclus (Genus) Nichols, 1919

Vertebrates (1)

†Spathicephalus mirus Watson, 1929

Crustaceans (9)

Alpheus brevicristatus De Haan, 1844 - Teppo snapping shrimp

Callianassa japonica Ortmann, 1891 - Japanese ghost shrimp

Clibanarius infraspinatus - hermit crab

Euaugaptilus hyperboreus Brodsky, 1950

Mictyris longicarpus - soldier crab

Ocypode ceratophthalmus

Scopimera intermedia - sand-bubbler crab

Uca vocans

Upogebia major (De Haan, 1841) - Japanese mud shrimp

Arthropods (1)

Tachypleus tridentatus (Leach, 1819)

Molluscs (23)

Anadara granosa - bloody cockle

Anomalocardia (Anomalodiscus) squamosa (C. Linnaeus, 1758)

Ascobulla (Genus) Marcus, 1972

Batillaria zonalis (Bruguiere, 1792) - Japanese false cerith

Caliphylla (Genus) A. Costa, 1867

Capharca cornea - bloody cockle

Cerithidea rhizophorarum A. Adams, 1855

Clione (Genus) - sea-butterfly

Clithon oualaniensis (Lesson, 1831)

Cyclina sinensis

Elysia (Genus) Risso, 1818

Ercolania (Genus) Trinchese, 1872

Katalysia japonica

Meiomenia swedmarki Morse, 1979 - Pacific psammonworm

Nassarius festivus

Natica (Genus) Scopoli, 1777

Paphia euglypta

Philine orientalis

Polinices (Genus) Montfort, 1810

Prochaetodermatidae (Family) Salvini-Plawen, 1968

Ruditapes philippinarum (A. Adams & Reeve, 1850) - Japanese littleneck

Stylocheilus longicauda (Quoy & Gaimard, 1825) - longtail seacat

Vulcanoctopus hydrothermalis Gonzalez et al., 1998

Annelids (7)

Chaetozone setosa Malmgren, 1867

Hydroides norvegica (Gunnerus, 1768)

Notomastus latericeus M. Sars, 1851

Paleanotus heteroseta O. Hartman, 1945

Perinereis cultrifera (Grube)

Scoloplos armiger (O.F. Müller)

Yndolaciidae (Family) Støp-Bowitz, 1987

Invertebrates (19)

Archaster typicus Müller & Troschel, 1840

Bolinopsis infundibulum (O.F. Müller, 1776)

Branchiostoma lanceolatum (P.S. Pallas, 1774) - amphioxus

Dryodora glandiformis (Mertens, 1833)

Echinarachnius parma (Lamarck, 1816) - common sand dollar

Gastrotricha (Phylum) Metschnikoff, 1864 - gastrotrichs

Lineus (Genus) Sowerby, 1805

Megastygarctides christinae H.J. Guldberg & R.M. Kristensen, 2006

Megastygarctides gerdae H.J. Guldberg & R.M. Kristensen, 2006

Mertensia ovum (Fabricius, 1780)

Ochetostoma erythrogrammon Leuckart & Ruppell, 1828 - inn keeper worm

Oikopleura labradoriensis

Peniagone (Genus) Théel, 1882

Plotocnide borealis Wagner, 1885

Salmacis sphaeroides

Sipunculus nudus C. Linnaeus, 1766

Spatangus purpureus Müller, 1776

Tardigrada (Phylum) (Spallanzani, 1777) Ramazzotti, 1962 - tardigrades

Thysanostoma (Genus) L. Agassiz, 1862

Animals (1)

Pelagothrix (Genus) Foissner et al., 1999

Fungi (3)

Balladyna (Genus) Racib., 1900

Lemonniera (Genus) De Wild., 1894

Urnula (Genus) Fr., 1849

Plants (2)

Blepharostoma (Genus) Schewiakoff

Codonopsis (Genus) N. Wallich, in Roxburgh, 1824

Algae (4)

Diatomeae (Subphylum) (Dumortier, 1821) Cavalier-Smith, 1995 - diatoms

Learamoeba waccamawensis T.K. Sawyer et al., 1998

Liagorothamnion mucoides J.M. Huisman et al., 2000

Paravahlkampfia ustiana (F.C. Page, 1974) S. Brown & J.F. De Jonckheere, 1999

Protozoa (916)

Acanthamoeba lenticulata B. Molet & G. Ermolieff-Braun, 1976

Acanthostomella (Genus) Jørgensen, 1927

Acanthostomella norvegica (Daday, 1887) Jörgensen, 1927

Acaryophrya helenae André, 1915

Acineria incurvata Dujardin, 1841

Acineta (Genus) Ehrenberg, [1834]

Acineta tuberosa Ehrenberg, [1834]

Acinetides varians Swarczewsky, 1928

Acinetopsis (Genus) Robin, 1879

Acinetopsis rara Robin, 1879

Acrasis rosea L.S. Olive & C. Stoianovitch, 1960

Acropisthium mutabile Perty, 1852

Actinichona gaucho Jankowski, 1973

Actinobolina radians (Stein, 1867) Strand, 1928

Actinobranchium (Genus) Jankowski, 1967

Actinobranchium salparum (Entz, 1884) Jankowski, 1967

Actinocyathula (Genus) Corliss, 1960

Actinocyathula cidaris (Kent, 1882) Corliss, 1960

Actinorhabdos (Genus) Foissner, 1984

Actinorhabdos trichocystifera Foissner, 1984

Agnathodysteria (Genus) Deroux, 1976

Agnathodysteria littoralis Deroux, 1976

Albatrossiella (Genus) Kofoid & Campbell, 1929

Albatrossiella filigera (Laackmann, 1910) Kofoid & Campbell, 1929

Allotricha (Genus) Sterki, 1878

Allotricha mollis Sterki, 1878

Amphileptiscus (Genus) Song & Bradbury, 1998

Amphileptiscus shii Song & Bradbury, 1998

Amphileptus (Genus) Ehrenberg, 1832[1830]

Amphileptus cygnus Ehrenberg, 1830

Amphisiella marioni Gourret & Roeser, 1888

Amphorellopsis (Genus) Kofoid & Campbell, 1929

Amphorellopsis acuta (Schmidt, 1901) Kofoid & Campbell, 1929

Amphorides (Genus) Strand, 1929[1928]

Amphorides amphora (Claparède & Lachmann, 1858) Strand, 1928

Amplectella (Genus) Kofoid & Campbell, 1929

Amplectella collaria (Brandt, 1906) Kofoid & Campbell, 1929

Amplectellopsis (Genus) Kofoid & Campbell, 1929

Amplectellopsis biedermanni Kofoid & Campbell, 1929

Ampullofolliculina (Genus) Hadzi, 1951

Ampullofolliculina lageniformis Hadzi, 1951

Ancystropodium (Genus) Fauré-Fremiet, 1908

Anigsteinia (Genus) Isquith, 1968

Anigsteinia clarissima Isquith, 1968

Anthacineta craterella (Collin) Jankowski, 1978

Anthochloe (Genus) Joseph, 1882

Anthochloe prosperinae Joseph, 1882

Anthurceolaria (Genus) Jankowski, 1980

Anthurceolaria karyolobia (Hirshfield) Jankowski, 1980

Antipia (Genus) Lepsi, 1927

Antipia spiralis Lepsi, 1927

Apoamphisiella tihanyiensis (Géllert & Tamás, 1958) Foissner, 1997

Apocryptopharynx (Genus) Foissner, 1996

Apocryptopharynx hippocampoides Foissner, 1996

Apsiktrata (Genus) Foissner et al., 1994

Apsiktrata gracilis (Penard, 1922) Foissner, Berger & Kohmann, 1994

Arcodiscophrya (Genus) Jankowski, 1981

Arcodiscophrya heraldica Jankowski, 1981

Aristerostoma (Genus) Kahl, 1926

Aristerostoma minutum Kahl, 1926

Armiacineta seticola Jankowski, 1982

Armichona gibbosa Jankowski, 1973

Ascampbelliella (Genus) Corliss, 1960

Ascampbelliella urceolata (Ostenfeld, 1899) Corliss, 1960

Ascobius (Genus) Henneguy, 1884

Ascobius lentus Henneguy, 1884

Askenasia (Genus) Blochmann, 1895

Askenasia volvox (Eichwald, 1852) Kahl, 1930

Aspidisca lynceus (Müller, 1773) Ehrenberg, 1830

Astylozoon (Genus) Engelmann, 1862

Astylozoon fallax Engelmann, 1862

Atelepithites (Genus) Deroux, 1976

Atelepithites misellum Deroux, 1976

Atopochilodon arenifer Kahl, 1933

Atopodinium fibulatum Kahl, 1932

Atractos (Genus) Vörösváry, 1950

Atractos contortus Vörösváry, 1950

Aulofolliculina (Genus) Hadzi, 1951

Aulofolliculina labyrinthica Hadzi, 1951

Aurichona armata Jankowski, 1973

Australana (Genus) Jankowski, 1986

Australana kaneis Jankowski, 1986

Avelia (Genus) Nouzarède, 1977

Avelia martinicensis (Nouzarède, 1975) Nouzarède, 1977

Azerella (Genus) Alekperov, 1985

Azerella calva Alekperov, 1985

Baikalaster (Genus) Jankowski, 1986

Baikalaster pelagicus Jankowski, 1986

Baikalocoleps (Genus) Obolkina, 1995

Baikalocoleps quadratus Obolkina, 1995

Baikalodendron angustatum Swarczewsky, 1928

Baikalonis (Genus) Yankovskij, 1982

Baikalonis foissneri Jankowski, 1982

Baikalotheca cratera (Swarczewsky, 1930) Jankowski, 1985

Baikalothigma viride Jankowski, 1982

Bakuella marina Agamaliev & Alekperov, 1976

Balanion (Genus) Wulff, 1922[1919]

Balanion comatum Wulff, 1919

Balantidioides muscicola (Penard, 1922) Penard, in Kahl, 1930

Balantidion (Genus) Eberland, 1862

Balantidion pellucidum Eberhard, 1862

Balladyna parvula Kowalewski, 1882

Banyulsella (Genus) Dragesco, 1953[1954]

Banyulsella viridis Dragesco, 1954

Baznosanuia (Genus) Tucolesco, 1962

Baznosanuia nana Tucolesco, 1962

Beckmania baikalensis Jankowski, 1982

Beersena (Genus) Jankowski, 1989, nom. nov.

Beersena limax (Deroux, 1978) Jankowski, 1989

Belonophrya (Genus) André, 1914

Belonophrya pelagica André, 1914

Benthontophrys (Genus)

Benthontophrys fluviatilis Foissner & Gschwind, 1998

Bezedniella (Genus) Stloukal & Matis, 1994

Bezedniella prima Stloukal & Matis, 1994

Bipalmatum (Genus)

Bipalmatum salinum Gajevskaja, 1924

Blepharisma persicinum Perty, 1849

Blepharostoma glaucoma Schewiakoff, 1892

Bothrostoma (Genus) Stokes, 1888

Bothrostoma undulans Stokes, 1887

Botticula (Genus) Dioni, 1973

Botticula ringueleti Dioni, 1972

Brachonella contorta (Levander, 1894) Jankowski, 1964

Brachyosoma (Genus) Batisse, 1975

Brachyosoma brachypoda (Stokes, 1885) Batisse, 1975

Brandtiella (Genus) Kofoid & Campbell, 1929

Brandtiella palliata (Brandt, 1906) Kofoid & Campbell, 1929

Bursaopsis (Genus) Kofoid & Campbell, 1929

Bursaopsis striata (Daday, 1887) Kofoid & Campbell, 1929

Bursaria truncatella Müller, 1773

Bursaridium (Genus) Lauterborn, 1894

Bursaridium schewiakowii Lauterborn, 1894

Bursellopsis (Genus) Corliss, 1960

Bursellopsis spumosa (Schmidt, 1920) Corliss, 1960

Bursostoma (Genus) Vörösváry, 1950

Bursostoma bursaria Vörösváry, 1950

Buschiella (Genus) Corliss, 1960

Buschiella subantarctica (Busch, 1948) Corliss, 1960

Caenomorpha (Genus) Perty, 1852

Caenomorpha medusala Perty, 1852

Calyptotricha (Genus) Phillips, 1882

Calyptotricha pleuronemoides Phillips, 1882

Campylodinium (Genus) Jankowski, 1975

Campylodinium ovumrajae (Dogiel, 1926) Jankowski, 1975

Canthariella (Genus) Kofoid & Campbell, 1929

Canthariella brevis Kofoid & Campbell, 1929

Carchesium (Genus) Ehrenberg, 1832[1830]

Carchesium polypinum (Linnaeus, 1758) Ehrenberg, 1831

Cardiostomatella (Genus) Corliss, 1960

Cardiostomatella vermiformis (Kahl, 1928) Corliss, 1960

Carinichona globulus Jankowski, 1973

Carinoposthium (Genus) Yankovskij, 1980

Carinoposthium caudatum (da Cunha) Jankowski, 1980

Caryotricha (Genus) Kahl, 1932

Caryotricha convexa Kahl, 1932

Cashia limacoides (Page, 1967) Page, 1974

Caspionella (Genus) Yankovskij, 1980

Caspionella bergeri (Agamaliev) Jankowski, 1980

Cavichona cincinnata Jankowski, 1973

Celeritia (Genus) Tucolesco, 1962

Celeritia globosa Tucolesco, 1962

Ceratochona cimex Jankowski, 1973

Certesia (Genus) Fabre-Domergue, 1885

Certesia quadrinucleata Fabre-Domergue, 1885

Chaenea vorax Quennerstedt, 1867

Chaetospira (Genus) Lachmann, 1856

Chaetospira muelleri Lachmann, 1856

Chanostoma (Genus) Daday, 1884

Chanostoma margaritiferum Daday, 1884

Chattonidium (Genus) Villeneuve, 1937

Chattonidium setense Villeneuve, 1937

Chilenophrys (Genus) Jankowski, 1986

Chilenophrys allendei Jankowski, 1986

Chilodina (Genus) Šrámek-Hušek, 1957

Chilodina silesiaca Šrámek-Hušek, 1957

Chilodochona quennerstedti Wallengren, 1895

Chilodonatella (Genus) Dragesco, 1966

Chilodonatella minuta Dragesco, 1966

Chilodonella uncinata (Ehrenberg, 1838) Strand, 1928

Chilodontopsis (Genus) Blochmann, 1895

Chilodontopsis depressa (Perty, 1852) Blochmann, 1895

Chilophrya utahensis (Pack, 1919) Kahl, 1930

Chitonella (Genus) Small & Lynn, 1985

Chitonella chesapeakensis Small & Lynn, 1985

Chlamydodon (Genus) Ehrenberg, 1835

Chlamydodon mnemosyne Ehrenberg, 1835

Chlamydonella pseudochilodon (Deroux, 1970) Petz, Song & Wilbert, 1995

Chlamydonellopsis (Genus) Blatterer & Foissner, 1990

Chlamydonellopsis plurivacuolata Blatterer & Foissner, 1990

Chlamydonyx (Genus) Deroux, 1976

Chlamydonyx paucidentatus Deroux, 1976

Chonosaurus rex Jankowski, 1973

Ciliofaurea (Genus) Dragesco, 1960

Ciliofaurea arenicola (Dragesco, 1954) Dragesco, 1960

Cinetochilum margaritaceum (Ehrenberg, 1831) Perty, 1849

Cinetozona (Genus) Olmo, Tellez & Esteban, 1998

Cinetozona pyriformis Olmo, Tellez & Esteban, 1998

Cirranter (Genus) Jankowski, 1964

Cirranter mobilis (Penard, 1922) Jankowski, 1964

Cladotricha koltzowi Gajewskaja, 1926

Claretinella (Genus) Keij, 1974

Claretinella helenae Keij, 1974

Clathrostoma (Genus) Penard, [1921]

Clathrostoma viminale Penard, 1922

Claustrofolliculina (Genus) Hadzi, 1951

Claustrofolliculina clausa Hadzi, 1951

Clevea (Genus) Balech, 1948

Clevea melchersi Balech, 1948

Climacocylis (Genus) Jørgensen, 1925

Climacocylis scalarius (Brandt, 1906) Jörgensen, 1924

Climacostomum (Genus) Stein, 1859

Climacostomum virens (Ehrenberg, 1833) Stein, 1859

Clistolagenophrys primitiva (Swarczewsky, 1930) Clamp, 1991

Cochliopodium actinophorum (Auerbach, 1856) Hertwig & Lesser

Cochliopodium bilimbosum (Auerbach, 1856) Leidy, 1879

Cochliopodium larifeili A.A. Kudryavtsev, 1999

Cochliopodium minus Page, 1976

Codonaria (Genus) Kofoid & Campbell, 1939

Codonella galea Haeckel, 1873

Codonellopsis (Genus) Jørgensen, 1925

Codonellopsis orthoceras (Haeckel, 1873) Jörgensen, 1924

Codonopsis ollula (Brandt, 1906) Kofoid & Campbell, 1939

Coelosomides (Genus) Strand, 1928

Coelosomides marina (Anigstein, 1912) Strand, 1928

Cohnilembus (Genus) Kahl, 1933

Cohnilembus verminus (Müller, 1786) Kahl, 1933

Coleps (Genus) Nitzsch, 1827

Coleps hirtus (O.F. Müller, 1786) Nitzsch, 1827

Collinina gondii (Chatton & Pérard, 1919) Chatton & Pérard, 1924

Colpidium (Genus) Stein, 1860

Colpidium colpoda (Losana, 1829) Stein, 1860

Colpoda cucullus Müller, 1773

Comandonia operculata P. Pernin & M. Pussard, 1979

Compsosomella (Genus) Small & Lynn, 1985

Compsosomella psammobia Small & Lynn, 1985

Conchacineta constricta (Collin) Jankowski, 1978

Conchostoma (Genus) Fauré-Fremiet, 1963

Conchostoma longissimum Fauré-Fremiet, 1963

Condylostoma patense Bory, 1924

Condylostomides (Genus) da Silva Neto, 1994

Condylostomides grolieri da Silva Neto, 1994

Coniculostomum (Genus) Njiné, 1979

Copemetopus (Genus) Villeneuve-Brachon, 1940

Copemetopus subsalsus Villeneuve-Brachon, 1940

Corlissetta anivica Jankowski, 1986

Corlissia (Genus) Dragesco, 1954

Corlissia picta (Dragesco, 1954) Dragesco, 1954

Coronochona pectinata Jankowski, 1973

Coronothigma (Genus) Yankovskij, 1980

Coronothigma gigas (de Puytorac) Jankowski, 1980

Cossothigma (Genus) Jankowski, 1978

Cossothigma dubium (Dragesco, 1954) Jankowski, 1978

Cotensicoma manticola Jankowski, 1982

Cotensita commensalis Jankowski, 1982

Cothurnia imberis Ehrenberg, 1831

Cothurniopsis valvata Stokes, 1893

Cothurnopsis astaci (Stein) Entz, 1884

Coxliella laciniosa (Brandt, 1906) Brandt, 1907

Cranotheridium (Genus) Schewiakoff, 1892

Cranotheridium taeniatum Schewiakoff, 1893

Craspedomyoschiston sphaeromae Precht, 1935

Crassichona insolita Jankowski, 1973

Crateristoma (Genus) Jankowski, 1967

Crateristoma kindi Jankowski, 1967

Crevicometes murmanicus Jankowski, 1981

Cricundella (Genus) Kofoid & Campbell, 1929

Cricundella tridivisa (Brandt, 1906) Kofoid & Campbell, 1929

Cristichona pacifica Jankowski, 1973

Cristigera (Genus) Roux, 1899

Cristigera pleuronemoides Roux, 1899

Crobylura (Genus) André, 1914

Crobylura pelagica André, 1914

Cryptacineta operata (Swarczewski) Jankowski, 1978

Cryptochilum (Genus) Maupas, 1883

Cryptochilum griseolum (Perty, 1852) Maupas, 1883

Cryptonyctus (Genus) Yankovski, 1978

Cryptonyctus chabaudi (Albaret) Jankowski, 1978

Cryptopharynx (Genus) Kahl, 1928

Cryptopharynx setigerus Kahl, 1928

Cryptophrya obtecta (Swarczewsky, 1928) Jankowski, 1973

Ctedoctema (Genus) Stokes, 1884

Ctedoctema acanthocryptum Stokes, 1884

Ctenochona ternipara Jankowski, 1973

Cucumophrya (Genus) Kunz, 1936

Cucumophrya leptomesochrae Kunz, 1936

Cyamichona mysticeti Jankowski, 1971

Cyathopercularia (Genus) Yankovskij, 1980

Cyathopercularia laccobii (Matthes & Guhl, 1972) Jankowski, 1980

Cyclidium glaucoma Müller, 1773

Cyclodonta (Genus) Matthes, 1958

Cyclodonta bipartita (Stokes, 1885) Matthes, 1958

Cyclophrya (Genus) Gönnert, 1935

Cyclophrya magna Gönnert, 1935

Cyclotrichium (Genus) Meunier, 1910

Cyclotrichium cyclokaryon Meunier, 1910

Cylindriconella (Genus) Aescht, 2001

Cylindriconella insueta (Rehánek, 1986) in Aescht, 2001

Cymatocylis (Genus) Laackmann, 1910

Cymatocylis drygalskii (Laackmann, 1907) Laackmann, 1910

Cyrtolophosis mucicola Stokes, 1885

Cyrtophoron (Genus) Deroux, 1975

Cyrtophoron isagogicum Deroux, 1975

Cyrtostromhidium (Genus)

Cyrtostromhidium longisomum Lynn & Gilron, 1993

Cytharoides (Genus) Tuffrau, 1974[1975]

Cytharoides balechi Tuffrau, 1975

Cyttarocylis (Genus) Fol, 1881

Cyttarocylis cassis (Haeckel, 1873) Fol, 1881

Dactylochlamys (Genus) Lauterborn, 1901

Dactylochlamys pisciformis Lauterborn, 1901

Dactylostoma (Genus) Jankowski, 1967

Dactylostoma collinii (Gajewskaja, 1929) Jankowski, 1967

Dadayiella (Genus) Kofoid & Campbell, 1929

Dadayiella ganymedes (Entz, 1884) Kofoid & Campbell, 1929

Daurotheca (Genus) Jankowski, 1986

Daurotheca variabilis (Kellicott, 1883) Jankowski, 1986

Dellochus (Genus) Corliss, 1960

Dellochus mucicola (Delphy, 1938) Corliss, 1960

Deltacineta (Genus) Jankowski, 1981

Deltacineta seticola Jankowski, 1981

Dendrocometes paradoxus Stein, 1852

Dendrocometides priscus Swarczewsky, 1928

Dendrosoma (Genus) Ehrenberg, 1837[1838], nom. nud.

Dendrosoma radians Ehrenberg, 1837

Dendrosomides paguri Collin, 1905

Dentacineta campanuliformis (Collin, 1909) Jankowski, 1978

Dentacinetides (Genus) Batisse, 1992

Dentacinetides collini Batisse, 1992

Dentichona marginata Jankowski, 1973

Dermamoeba granifera (Greeff, 1866) Page & Blakey, 1979

Dermamoeba minor (M. Pussard et al., 1979) Page, 1988

Deuteramoeba algonquinensis (B.M. Baldock et al., 1983) Page, 1987

Deuteramoeba mycophaga (M. Pussard et al., 1980) Page, 1987

Deviata abbrevescens Eigner, 1995

Dexiostoma (Genus) Jankowski, 1967

Dexiostoma campylum (Stokes, 1886) Jankowski, 1967

Dexiotricha (Genus) Stokes, 1885

Dexiotricha granulosa (Kent, 1881) Foissner, Berger & Kohmann, 1994

Dexiotrichides (Genus) Kahl, 1931

Dexiotrichides centralis (Stokes, 1885) Kahl, 1931

Diaxonella trimarginata Jankowski, 1979

Dichilum (Genus) Schewiakoff, 1892

Dichilum cuneiforme Schewiakoff, 1893

Dictyocysta (Genus) Ehrenberg, 1854

Dictyocysta elegans Ehrenberg, 1854

Didieria (Genus) Small & Lynn, 1985

Didieria ohioensis Small & Lynn, 1985

Didinium nasutum (O.F. Müller, 1773) Stein, 1859

Dileptus anser (Müller, 1773) Dujardin, 1841

Dimorphocothurnia (Genus) Yankovskij, 1980

Dimorphocothurnia nebaliae (Dons, 1928) Jankowski, 1985

Diophryopsis (Genus) Hill & Borror, 1992

Diophryopsis histrix (Buddenbrock, 1920) Hill & Borror, 1992

Diophrys (Genus) Dujardin, 1840, nom. nud.

Diophrys appendiculata (Ehrenberg, 1838) Levander, 1894

Diplogmus (Genus) Mansfeld, 1923

Diplogmus contrax Mansfeld, 1923

Discacineta (Genus) Jankowski, 1981

Discacineta micraster (Penard, 1914) Jankowski, 1981

Discephelota (Genus) Jankowski, 1981

Discephelota gigantea (Noble, 1929) Jankowski, 1981

Discocephalus rotatorius Ehrenberg, in Hemprich & Ehrenberg, 1831

Discomorphella (Genus) Corliss, 1960

Discomorphella pectinata (Levander, 1893) Corliss, 1960

Discophrya (Genus) Lachmann, 1859

Discophrya speciosa Lachmann, 1859

Discophryson (Genus)

Discophryson liberus Jankowski, 1985

Discosomatella tenella (Swarczewsky, 1928) Corliss, 1960

Discotheca cupulata (Fauré-Fremiet, 1948) Jankowski, 1967

Discotricha (Genus) Tuffrau, 1954

Discotricha papillifera Tuffrau, 1954

Discozoon (Genus) Vuxanovici, 1960

Discozoon undulans Vuxanovici, 1960

Disematostoma (Genus) Lauterborn, 1894

Disematostoma buetschlii Lauterborn, 1894

Dissothigma (Genus) Jankowski, 1976

Dissothigma saprophilum (Kahl, 1930) Jankowski, 1976

Dragescoa (Genus) Jankowski, 1974

Dragescoa mirabilis Jankowski, 1974

Drepanomonas dentata Fresenius, 1858

Dysteria (Genus) Huxley, 1857

Dysteria armata Huxley, 1857

Dysterioides sessilina Matthes, 1950

Echinamoeba (Genus) Page, 1975

Echinamoeba thermarum M. Baumgartner et al., 2003

Echinichona regina Jankowski, 1973

Echinocyclidium (Genus) Jankowski, in Small & Lynn, 1985

Echinocyclidium stercoris (Powers, 1935) Jankowski, 1980

Echinofolliculina (Genus) Dons, 1934

Echinofolliculina mortenseni Dons, 1934

Echinophrya horrida Swarczewsky, 1928

Echinostrombidium (Genus) Yankovskij, 1978

Echinostrombidium symbioticum (Jankowski, 1974) Jankowski, 1978

Eilymophrys (Genus) Corliss, 1979

Eilymophrys gemmans (Bresslau, 1922) Corliss, 1979

Electostoma (Genus) Yankovskij, 1979

Electostoma vastum (Bock, 1952) Jankowski, 1979

Elitarcon (Genus) Jankowski, 1981

Elitarcon harmothois Jankowski, 1981

Ellobiophrya donacis Chatton & Lwoff, 1923

Eminothigma (Genus) Jankowski, in Corliss, 1979

Eminothigma kozloffi (de Puytorac, 1968) Jankowski, in Corliss, 1979

Enchelydium (Genus) Kahl, 1930

Enchelydium fusidens Kahl, 1930

Enchelyomorpha vermicularis (Smith, 1899) Kahl, 1930

Enchelys farcimen Müller, 1773

Engelmanniella mobilis (Engelmann, 1862) Foissner, 1982

Eometopus (Genus) Small & Lynn, 1985

Eometopus simplex Small & Lynn, 1985

Epalxella (Genus) Corliss, 1960

Epalxella mirabilis (Roux, 1899) Corliss, 1960

Epenardia (Genus) Corliss, 1971

Epenardia myriophylli (Penard, 1922) Corliss, 1971

Epicancella (Genus) Kofoid & Campbell, 1929

Epicancella nervosa (Cleve, 1900) Kofoid & Campbell, 1929

Epicarchesium (Genus) Jankowski, 1985

Epicarchesium granulatum (Kellicott, 1887) Jankowski, 1985

Epiclintes (Genus) Stein, 1863

Epiclintes felis (Müller, 1786) Carey & Tatchell, 1983

Epicranella (Genus) Kofoid & Campbell, 1929

Epicranella prismatica Kofoid & Campbell, 1929

Epifolliculina (Genus) Hadzi, 1951

Epifolliculina diaphana Hadzi, 1951

Epimecophrya (Genus) Kahl, 1933

Epimecophrya cylindrica Kahl, 1933

Epiplocylis (Genus) Jörgensen, 1924

Epiplocylis acuminata (Daday, 1887) Jörgensen, 1924

Epiplocyloides (Genus) Hada, 1938

Epiplocyloides reticulata (Ostenfeld & Schmidt, 1902) Hada, 1938

Epirhabdonella (Genus) Kofoid & Campbell, 1939

Epirhabdonella coronata Kofoid & Campbell, 1939

Epistylis plicatilis Ehrenberg, 1830

Eriochona horrida Jankowski, 1973

Espejoia (Genus) Bürger, 1908

Espejoia obtusa Bürger, 1908

Eufolliculina (Genus) Hadzi, 1951

Eufolliculina moebiusi (Kahl, 1932) Hadzi, 1951

Euhyperamoeba fallax Seravin & Goodkov, 1982

Euplotes charon (Ehrenberg, 1830) Ehrenberg, in Hemprich & Ehrenberg, 1831

Euplotidium (Genus) Noland, 1937

Euplotidium agitatum Noland, 1937

Euplotoides (Genus) Borror & Hill, 1995

Euplotoides patella (Müller, 1773) Borror & Hill, 1995

Euplotopsis (Genus) Borror & Hill, 1995

Euplotopsis affinis (Dujardin, 1841) Borror & Hill, 1995

Eurychona vitrea Jankowski, 1973

Eutintinnus (Genus) Kofoid & Campbell, 1939

Eutintinnus birictus (Kofoid & Campbell, 1929) Kofoid & Campbell, 1939

Fabrea (Genus) Henneguy, 1890

Fabrea salina Henneguy, 1890

Falconyctus indicus (Rao) Jankowski, 1978

Favella (Genus) Jörgensen, 1925

Favella ehrenbergi (Claparède & Lachmann, 1858) Jörgensen, 1924

Filamoeba (Genus) F.C. Page, 1967

Filichona paradoxa Jankowski, 1973

Flamella aegyptia R. Michel & A.V. Smirnov, 1999

Flamella citrensis E.C. Bovee, 1956

Flamella lacustris R. Michel & A.V. Smirnov, 1999

Flamella tiara D.W. Fishbeck & E.C. Bovee, 1993

Flectacineta (Genus) Yankovskii, 1978

Flectacineta livadiana (Mereschkowski) Jankowski, 1978

Flectichona crenata Jankowski, 1973

Foissnerella (Genus) Jankowski, 1986

Foissnerella physonica Jankowski, 1986

Foissnerides (Genus) Song & Wilbert, 1989

Foissnerides heliophagus Song & Wilbert, 1989

Folliculina (Genus) Lamarck, 1816

Folliculina ampulla (Müller, 1786) Lamarck, 1816

Frontonia leucas (Ehrenberg, 1833) Ehrenberg, 1838

Fundenia (Genus) Vuxanovici, 1962

Fundenia complanata Vuxanovici, 1962

Furgasonia tricirrata (Gelei, 1932) Jankowski, 1964

Fuscheria nodosa Foissner, 1983

Gajewskajophrya (Genus) Matthes, in Matthes & Haider, 1988

Gajewskajophrya melosirae (Gajewskaya, 1933) Matthes, 1988

Gajewskiella (Genus) Obolkina, 1989

Gajewskiella macrostoma Obolkina, 1989

Gastrocirrhus (Genus) Lepsi, 1928

Gastrocirrhus intermedius Lepsi, 1928

Gastronauta membranaceus Engelmann, in Bütschli, 1889

Gastrostyla steinii Engelmann, 1862

Geleia (Genus) Kahl, 1933

Gellertia (Genus) Dragesco, 1999

Gellertia heterotricha (Dragesco, 1960) Dragesco, 1999

Gephyramoeba delicatula Goodey, 1914

Gerda glans Claparède & Lachmann, 1858

Glaeseria mira (Glaeser, 1912) Volkonsky, 1931

Glaucoma scintillans (Müller, 1786) Ehrenberg, 1830

Glaucomella (Genus) Grolière, 1977

Glaucomella sagitta (Kahl, 1926) Grolière, 1977

Glauconema (Genus) Thompson, 1966

Glauconema trihymene Thompson, 1966

Gocevia fonbrunei Pussard, 1965

Goniocoma macomae (Chatton & Lwoff, 1926) Chatton & Lwoff, 1950

Gonostomum affine (Stein, 1859) Sterki, 1878

Gonzeella (Genus) Kufferath, 1953

Gonzeella coloniaris Kufferath, 1953

Gruberella (Genus) Page, 1984, nom. praeocc.

Gruberella oviformis (Gruber, 1884) Corliss, 1960

Gruberia (Genus) Kahl, 1932

Gruberia uninucleata Kahl, 1932

Guttulinopsis nivea Raper et al., 1977

Guttulinopsis vulgaris E.W. Olive, 1901

Gymnozoum (Genus) Meunier, 1910

Gymnozoum viviparum Meunier, 1910

Hackenbergia (Genus) Foissner, 1997

Hackenbergia langae Foissner, 1997

Halteria grandinella (O.F. Müller, 1773) Dujardin, 1841

Haplocaulus furcellariae (Precht, 1935) Warren, 1988

Harmocoma (Genus) Yankovskij, 1980

Harmocoma rostellum (Deroux, 1976) Jankowski, 1980

Hartmannella cantabrigiensis Page, 1974

Hartmannella lobifera A.V. Smirnov, 1997

Hartmannella vermiformis Page, 1967

Hartmannula (Genus) Poche, 1913

Hartmannula acrobates (Entz, 1884) Poche, 1913

Hartmannulopsis (Genus) Deroux & Dragesco, 1968

Hartmannulopsis dysteriana Deroux & Dragesco, 1968

Hastarcon (Genus) Jankowski, 1981

Hastarcon islandicus Jankowski, 1981

Hastatella radians Erlanger, 1890

Helicoprorodon (Genus) Fauré-Fremiet, 1950

Helicoprorodon gigas (Kahl, 1933) Fauré-Fremiet, 1950

Helicostoma (Genus) Cohn, 1866

Helicostoma oblongum Cohn, 1866

Helicostomella (Genus) Jörgensen, 1924

Helicostomella subulata (Ehrenberg, 1834) Jörgensen, 1924

Heliochona sessilis Plate, 1889

Heliophrya (Genus) de Saedeleer & Tellier, 1933

Heliophrya rotunda (Hentschel, 1916) Matthes, 1954

Heliotheca (Genus) Yankovskii, 1978

Heliotheca caepula (Penard, 1920) Jankowski, 1978

Hemicycliostyla (Genus) Stokes, 1886

Hemicycliostyla sphagni Stokes, 1886

Hemigastrostyla (Genus) Song & Wilbert, 1997

Hemigastrostyla stenocephala (Borror, 1963) Song & Wilbert, 1997

Hemiholosticha (Genus) von Gelei, 1954

Hemiholosticha viridis Gelei, 1954

Heminotus (Genus) Kahl, 1933

Heminotus caudatus Kahl, 1933

Heterochona crinita Jankowski, 1972

Hexotricha (Genus) Conn, in Conn & Edmondson, 1918

Hexotricha globosa Conn, in Conn & Edmondson, 1918

Hippocomos (Genus) Czapik & Jordan, 1977

Hippocomos loricatus Czapik & Jordan, 1977

Histiobalantium (Genus) Stokes, 1886

Histiobalantium agile Stokes, 1886

Histriculus histrio (Müller, 1773) Corliss, 1960

Holophrya ovum Ehrenberg, 1831

Holosticha kessleri Wrześniowski, 1877

Homalogastra setosa Kahl, 1926

Homalozoon (Genus) Stokes, 1890

Homalozoon vermiculare (Stokes, 1887) Stokes, 1890

Horocontus (Genus) Deroux, 1976

Horocontus arcuatus Deroux, 1976

Hydramoeba hydroxena (Entz, 1912) Reynolds & Looper, 1928

Hyloplotes (Genus)

Hyloplotes appendiculatus Butschinsky, 1897

Hypotrichidium (Genus) Ilowaisky, 1921

Hypotrichidium conicum Ilowaisky, 1921

Hysterocineta paludinarum (Stein, 1861) Diesing, 1866

Ileonema dispar Stokes, 1884

Inermichona patella Jankowski, 1971

Intranstylum (Genus) Fauré-Fremiet, 1904

Intranstylum contrahens Fauré-Fremiet, 1904

Inversochona peregra Jankowski, 1973

Isochona rotundata Jankowski, 1973

Isocyclidium (Genus) Esteban et al., 1993

Isocyclidium globosum Esteban, Finlay & Embley, 1993

Isopodarcon multicapitatum (Kent, 1882) Jankowski, 1981

Jaocorlissia (Genus) Small & Lynn, 1985

Jaocorlissia dragescui (Corliss, 1971) Small & Lynn, 1985

Jeppsia (Genus) Corliss, 1960

Jeppsia calani (Jepps, 1937) Corliss, 1960

Kahliela (Genus) Tucolesco, 1962

Kahliela leptocirra Tucolesco, 1962

Kahlilembus attenuatus (Smith, 1897) Foissner, Berger & Kohmann, 1994

Kalometopia perronnei Bramy, 1962

Kentrochona nebaliae Rompel, 1894

Kentrochonopsis (Genus) Doflein, 1897

Kentrochonopsis multipara Doflein, 1897

Kentrophoros (Genus) Sauerbrey, 1928

Kentrophoros fasciolatus Sauerbrey, 1928

Kentrophyllum (Genus) Petz, Song & Wilbert, 1995

Kentrophyllum antarcticum Petz, Song & Wilbert, 1995

Kerona pediculus (Müller, 1773) Blochmann, 1886

Kiitricha (Genus) Nozawa, 1941

Kiitricha marina Nozawa, 1941

Klonostricha (Genus) Vuxanovici, 1963

Klonostricha horrida (Vuxanovici, 1962) Jankowski, 1979

Korotnevella bulla (Schaeffer, 1926) A.V. Goodkov, 1988

Korotnevella diskophora A.V. Smirnov, 1999

Korotnevella nivo A.V. Smirnov, 1997

Korotnevella stella (Schaeffer, 1926) A.V. Goodkov, 1988

Kotinia (Genus) Obolkina, 2001

Kotinia arcuata (Obolkina, 1995) Obolkina, in Aescht, 2001

Kovalevaia (Genus) Foissner, 1997

Kovalevaia sulcata (Kovaleva, 1966) Foissner, 1997

Kuklikophrya dragescoi Njiné, 1979

Laackmanniella (Genus) Kofoid & Campbell, 1929

Laackmanniella naviculaefera (Laackmann, 1907) Kofoid & Campbell, 1929

Lacazea (Genus) Dragesco, 1960

Lacazea ovalis Dragesco, 1960

Lacerus (Genus) Jankowski, 1967

Lacerus pespelicani (Penard, 1922) Jankowski, 1967

Lacrymaria olor (Müller, 1786) Bory, 1824

Lagenophrys (Genus) Stein, 1852

Lagenophrys vaginicola Stein, 1852

Lagynophrya mutans Kahl, 1927

Lagynurus (Genus) Mansfeld, 1923

Lagynurus pumilo Mansfeld, 1923

Lagynus (Genus) Quennerstedt, 1867

Lagynus elegans (Engelmann, 1862) Quennerstedt, 1867

Larvulina (Genus) Penard, 1922

Larvulina variabilis Penard, 1922

Latifolliculina (Genus) Hadzi, 1951

Latifolliculina incolorea Hadzi, 1951

Laurentiella macrostoma (Dragesco, 1966) Dragesco & Njiné, 1971

Lecanodiscus longus (Swarczewsky, 1928) Jankowski, 1973

Lecanophrya (Genus) Kahl, 1934

Lecanophrya drosera Kahl, 1934

Leegaardiella (Genus) Lynn & Montagnes, 1988

Leegaardiella sol Lynn & Montagnes, 1988

Legendrea (Genus) Fauré-Fremiet, 1908

Legendrea loyezae Fauré-Fremiet, 1908

Lembadion (Genus) Perty, 1849

Lembadionella (Genus) Kahl, 1933

Lembadionella pusilla Kahl, 1933

Lepidotrachelophyllum (Genus) Nicholls & Lynn, 1984

Lepidotrachelophyllum lineare (Lepsi, 1960) Foissner, 1994

Leprotintinnus (Genus) Jörgensen, 1899

Leprotintinnus pellucidus (Cleve, 1899) Jörgensen, 1901

Leptomyxa fragilis (E. Penard, 1904) F.J. Siemensma, 1987

Leptomyxa reticulata Goodey, 1914

Leptopharynx costatus Mermod, 1914

Liliimorpha (Genus) Gajewskaja, 1928

Liliimorpha viridis Gajewskaja, 1928

Limnoricus (Genus) Jankowski, 1981

Limnoricus ceter Jankowski, 1981

Limnostrombidium (Genus) Krainer, 1995

Limnostrombidium viride (Stein, 1867) Krainer, 1995

Linostomella vorticella (Ehrenberg, 1833) Aescht, in Foissner, Berger & Schaumburg, 1999

Lissacineta cothurnioides (Collin, 1909) Jankowski, 1978

Lissostrombidium (Genus) Yankovskij, 1978

Lissostrombidium turcicum (Hovasse) Jankowski, 1978

Litacineta (Genus) Yankovskii, 1978

Litacineta gracilis (Wailes) Jankowski, 1978

Litonotus cygnus (O.F. Müller, 1773) Foissner, Berger, Blatterer & Kohmann, 1995

Lobochona limnoriae Dons, 1941

Longifragma (Genus) Foissner, 1984

Longifragma obliqua (Kahl, 1926) Foissner, 1984

Longitricha (Genus) Gajewskaja, 1933

Longitricha flava Gajewskaja, 1933

Lopezoterenia (Genus) Foissner, 1997

Lopezoterenia torpens (Kahl, 1931) Foissner, 1997

Lophophorina (Genus) Penard, 1922

Lophophorina capronata Penard, 1922

Loricophrya (Genus) Matthes, 1956

Loricophrya parva (Schulz, 1932) Matthes, 1956

Loxocephalus (Genus) Eberhard, 1862

Loxocephalus luridus Eberhard, 1862

Loxodes (Genus) Ehrenberg, 1833[1830]

Loxodes rostrum (O.F. Müller, 1773) Ehrenberg, 1830

Loxophyllum (Genus) Dujardin, 1841

Loxophyllum meleagris (Müller, 1773) Dujardin, 1841

Ludio (Genus) Penard, 1922

Ludio parvulus Penard, 1922

Luminella (Genus) Kofoid & Campbell, 1939

Luminella punctata (Wailes, 1925) Kofoid & Campbell, 1939

Luxiella (Genus) Lecal, 1953

Luxiella mitra Lecal, 1953

Luxophrya (Genus) Yankovskii, 1978

Luxophrya limbata (Maupas) Jankowski, 1978

Lynchella (Genus) Kahl, 1933

Lynchella gradata (Kahl, 1933) Jankowski, 1968

Lynchellodon (Genus) Yankovskij, 1980

Lynchellodon lynchelliformis (Borror, 1972) Jankowski, 1980

Macrocoleps (Genus) Obolkina, 1995

Macrocoleps caudatus Obolkina, 1995

Magnalembus (Genus) Small & Lynn, 1985

Magnalembus oceanicus Small & Lynn, 1985

Malacophrys (Genus) Kahl, 1926

Malacophrys rotans Kahl, 1926

Marginotricha (Genus) Jankowski, 1978

Marginotricha grandis (Dragesco, 1954) Jankowski, 1978

Marinecta (Genus) Jankowski, 1973

Marinecta pelagica (Daday, 1888) Jankowski, 1973

Marituja (Genus) Gajewskaja, 1928

Marituja pelagica Gajewskaja, 1928

Maryna socialis Gruber, 1879

Mayorella augusta Schaeffer, 1926

Mayorella bigemma (A.A. Schaeffer, 1918) Schaeffer, 1926

Mayorella cantabrigiensis Page, 1972

Mayorella penardi Page, 1972

Mayorella vespertilioides Page, 1983

Mayorella viridis (Leidy, 1874) Harnisch, 1968

Membranicola (Genus) Foissner et al., 1999

Membranicola tamari Foissner et al., 1999

Mesanophrys (Genus) Small & Lynn, 1985

Mesanophrys carcini (Grolière & Leglise, 1977) Small & Lynn, in Aescht, 2001

Meseres corlissi

Mesodinium (Genus) Stein, 1862[1863]

Mesodinium acarus (Stein, 1867) Stein, 1863 [sic]

Mesothamnium hiketes (Precht, 1935) Jankowski, 1985

Metabakuella (Genus)

Metabakuella perbella (Alekperov & Mamameva, 1988) Alekperov, 1989

Metacineta mystacina (Ehrenberg, 1831) Bütschli, 1889

Metacollinia (Genus) Jankowski, 1980

Metacollinia luciensis (Poisson, 1921) Jankowski, 1980

Metacylis (Genus) Jörgensen, 1924

Metacylis mediterraneus (Mereschkowsky, 1880) Jörgensen, 1924

Metacystis (Genus) Cohn, 1866

Metacystis truncata Cohn, 1866

Metafolliculina (Genus) Dons, 1925[1924]

Metafolliculina nordgardi Dons, 1924

Metastrombidium (Genus) Fauré-Fremiet, 1923

Metastrombidium sonnifer Jankowski, 1980

Metephelota (Genus) Willis, 1945

Metephelota coronata Willis, 1945

Metopus es (Müller, 1786) Kahl, 1932

Microcardiosoma (Genus) Vuxanovici, 1963

Microcardiosoma multiseta Vuxanovici, 1963

Microchoanostoma (Genus) Vuxanovici, 1963

Microchoanostoma enigmaticum Vuxanovici, 1963

Micromidas (Genus) Delphy, 1938

Micromidas hians Delphy, 1938

Micronyctus (Genus) Yankovskij, 1978

Micronyctus madagascari (Tuzet & Manier, 1954) Jankowski, 1978

Microspiretta (Genus) Jankowski, 1975

Microspiretta plankticola (Gelei, 1944) Jankowski, 1975

Microthorax pusillus Engelmann, 1862

Microxysma (Genus) Deroux, 1976

Microxysma acutum Deroux, 1976

Micruncus (Genus) Delphy, 1938

Micruncus complanatus Delphy, 1938

Micrundella (Genus) Busch, 1948

Micrundella membranata (Busch, 1948) Loeblich & Tappan, 1968

Miracineta (Genus) Jankowski, 1981

Miracineta saifulae (Mereschkowsky, 1877) Jankowski, 1981

Mirodysteria (Genus) Kahl, 1933

Mirodysteria aplanata Kahl, 1933

Mirofolliculina (Genus) Dons, 1927[1928]

Mirofolliculina limnoriae (Giard, 1883) Dons, 1928

Monilicaryon (Genus) Jankowski, 1967

Monilicaryon monilatum (Stokes, 1886) Jankowski, 1967

Monintranstylum (Genus) Jankowski, 1993

Monintranstylum rotundum (Banina, 1977) Jankowski, 1993

Monochilum (Genus) Schewiakoff, 1892

Monochilum frontatum Schewiakoff, 1893

Monodinium balbianii Fabre-Domergue, 1888

Monodontophrya longissima Vejdovský, 1892

Mucophrya (Genus) Gajewskaja, 1928

Mucophrya pelagica Gajewskaja, 1928

Mucotrichidium (Genus) Foissner et al., 1990

Mucotrichidium hospes (Ehrenberg, 1831) Foissner, Oleksiv & Müller, 1990

Musajevella (Genus) Alekperov, 1984

Musajevella minima Alekperov, 1984

Muscipula (Genus) Guhl & Gum, 1993

Muscipula sebastiani Guhl & Guhl, 1993

Mycterothrix tuamotuensis (Balbiani, 1887) Kahl, 1931

Mylestoma (Genus) Kahl, 1928

Mylestoma bipartitum (Gourret & Roeser, 1886) Kahl, 1928

Myoschiston duplicatum (Precht, 1935) Jankowski, 1985

Myoscyphidia (Genus) Jankowski, 1985

Myoscyphidia hyalina (Biegel, 1954) Jankowski, 1985

Myriokaryon (Genus) Jankowski, 1973

Myriokaryon lieberkuehnii (Bütschli, 1889) Jankowski, 1973

Naegleria (Genus) A. Aléxéieff, 1912

Nannophrya (Genus) Kahl, 1933

Nannophrya truncata Kahl, 1933

Nassula flava (Claparède & Lachmann, 1859) Ehrenberg, [1834]

Nassulopsis (Genus) Fauré-Fremiet, 1959

Nassulopsis elegans (Ehrenberg, 1833) Foissner, Berger & Kohmann, 1994

Naxella (Genus) Foissner & O'Donoghue, 1990

Naxella lateritia (Claparède & Lachmann, 1859) Fryd-Versavel, Iftode & Deroux, 1980

Nematacineta (Genus) Yankovskii, 1978

Nematacineta rotunda (Allgen, 1950) Jankowski, 1978

Nemertodendron (Genus) Yankovskii, 1978

Nemertodendron prenanti (Dubosq, 1925) Jankowski, 1978

Neobursaridium (Genus) Balech, 1941

Neobursaridium gigas Balech, 1941

Niemarshallia (Genus) Corliss, 1960

Niemarshallia aperta (Marshall, 1934) Corliss, 1960

Nipponarcon (Genus) Jankowski, 1981

Nipponarcon setarium Jankowski, 1981

Nolaclusilis (Genus) Snyder & Brownlee, 1991

Nolaclusilis bicornis Snyder & Brownlee, 1991

Notocephalus (Genus) Petz et al., 1995

Notocephalus parvulus (Corliss & Snyder, 1986) Petz, Song & Wilbert, 1995

Notohymena rubescens Blatterer & Foissner, 1988

Novistrombidium (Genus) Song & Bradbury, 1998

Novistrombidium testaceum (Anigstein, 1914) Song & Bradbury, 1998

Nuchterleinella corneliae Matthes, 1990

Obertrumia aurea (Ehrenberg, 1833) Foissner, 1987

Odontophorella (Genus) Kofoid & Campbell, 1929

Odontophorella serrulata Kofoid & Campbell, 1929

Oenophorachona ectenolaemus Matsudo & Mohr, 1968

Oncosonderia (Genus) Yankovskij, 1980

Oncosonderia tubigula (Kahl, 1930) Jankowski, 1980

Onychodromopsis flexilis Stokes, 1887

Onychodromus (Genus) Stein, 1859

Onychodromus grandis Stein, 1859

Opercularia articulata Goldfuss, 1820

Operculariella parasitica Stammer, 1948

Ophiurephelota (Genus) Jankowski, 1981

Ophiurephelota tenax Jankowski, 1981

Ophrydium (Genus) Bory de St. Vincent, 1827

Ophrydium versatile (O.F. Müller, 1786) Bory, 1824

Ophryocephalus (Genus) Wailes, 1925

Ophryocephalus capitatus Wailes, 1925

Opisthodon (Genus) Stein, 1859

Opisthonecta henneguyi Fauré-Fremiet, 1906

Opisthostomatella (Genus) Corliss, 1960

Opisthostomatella bengalensis (Ghosh, 1928) Corliss, 1960

Orcavia (Genus) Tucolesco, 1962

Orcavia spelea Tucolesco, 1962

Ormosella (Genus) Kofoid & Campbell, 1929

Ormosella cornucopia Kofoid & Campbell, 1929

Orthodonella (Genus) Bhatia, 1936, nom. nov.

Orthodonella hamatus (Gruber, 1884) Bhatia, 1936

Ovalorhabdos (Genus) Foissner, 1984

Ovolembus (Genus) Small & Lynn, 1985

Ovolembus caroni Small & Lynn, 1985

Oxychonina (Genus) Corliss, 1979

Oxychonina multifida (Jankowski, 1973) Corliss, 1979

Oxytricha granulifera Foissner & Adam, 1983

Pachyfolliculina (Genus) Hadzi, 1951

Pachyfolliculina gunneri (Dons, 1927) Hadzi, 1951

Pachystomos (Genus) Rudzinska, 1952

Pachystomos olisthus (Rudzinska, 1948) Rudzinska, 1952

Palmarella (Genus) Jankowski, 1975

Palmarella salina (Gajewskaja, 1925) Jankowski, 1975

Papillorhabdos multinucleata Foissner, 1984

Parablaste (Genus)

Parablaste clavata Cragin, 1889

Parachaos zoochlorellae (N.B.S. Willumsen, 1982) Willumsen et al., 1987

Parachilodonella (Genus) Dragesco, 1966

Parachilodonella lygiae Dragesco, 1966

Paracineta patula (Claparède & Lachmann, 1861) Collin, 1911

Paraclathrostoma (Genus) Small & Lynn, 1985

Paraclathrostoma marinum Small & Lynn, 1985

Paracollinia (Genus) Yankovskij, 1980

Paracollinia branchiarum (Stein) Jankowski, 1980

Paracolpidium (Genus) Ganner & Foissner, 1989

Paracolpidium truncatum (Stokes, 1885) Ganner & Foissner, 1989

Paracondylostoma (Genus) Foissner, 1980

Paracondylostoma setigerum Foissner, 1980

Paractedectoma (Genus)

Paractedectoma minuta Small & Lynn, 1985

Paracyclidium (Genus) Grolière et al., 1980

Paracyclidium rhabdotectum (Powers, 1935) Grolière, de Puytorac & Grain, 1980

Paradermamoeba valamo A.V. Smirnov & A.V. Goodkov, 1993

Paradexiotricha (Genus) Grolière, 1975

Paradexiotricha puytoraci Grolière, 1975

Paradileptus (Genus) Wenrich, 1929

Paradileptus flagellatus (Rousselet, 1890) Wenrich, 1929

Paradiophrys (Genus) Jankowski, 1978

Paradiophrys irmgard (Mansfeld, 1923) Jankowski, 1978

Paraenchelys spiralis Foissner, 1983

Parafavella (Genus) Kofoid & Campbell, 1929

Parafavella denticulata (Ehrenberg, 1840) Kofoid & Campbell, 1929

Paraflabellula kudoi (Singh & Hanumaiah, 1979) Page, 1983

Paraglaucoma (Genus)

Paraglaucoma rostrata Kahl, 1926

Paragocevia placopus (Hülsmann, 1974) Page & Willumsen, 1980(?)

Paraholosticha (Genus) Kahl, 1932

Paraholosticha herbicola (Kahl, 1932) Wenzel, 1953

Paralagenophrys (Genus) Clamp, 1987

Paralagenophrys singularis (Kellicott, 1887) Clamp, 1987

Paraloxocephalus (Genus) Small & Lynn, 1985

Paraloxocephalus coatsi Small & Lynn, 1985

Paramecium (Genus) O.F. Müller, 1773

Paramecium aurelia O.F. Müller, 1773

Paramitrella (Genus) Jankowski, 1978

Paramitrella caudatus (Bullington, 1940) Jankowski, 1978

Paramphisiella acuta (Foissner, 1982) Foissner, 1988

Paranassula (Genus) Kahl, 1931

Paranassula microstoma (Claparède & Lachmann, 1859) Kahl, 1931

Paraoxychona inversa Jankowski, 1973

Parapetalotricha (Genus) Hada, 1970

Parapetalotricha meridiana Hada, 1970

Parapodophrya (Genus) Kahl, 1931

Parapodophrya soliformis (Lauterborn, 1908) Kahl, 1931

Paraprorodon (Genus) Foissner, 1983

Paraprorodon morgani (Kahl, 1930) Foissner, 1983

Parapyxicola (Genus) Jankowski, 1985

Parapyxicola ligiae (Cuenot, 1891) Jankowski, 1985

Paraspathidium (Genus) Noland, 1937

Paraspathidium trichostomum Noland, 1937

Parastentor (Genus) Vuxanovici, 1961

Parastentor tentaculatus Vuxanovici, 1961

Parastrongylidium (Genus) Fleury & Fryd-Versavel, 1984[1985]

Parastrongylidium martini Fleury & Fryd-Versavel, 1985

Parastylonychia (Genus) Dragesco, 1963

Parastylonychia plouneouri Dragesco, 1963

Parastylophrya (Genus) Yankovskii, 1978