Ascolaimus spinosus (Bütschli, 1874) accepted as Axonolaimus spinosus (Bütschli, 1874) de Man, 1889 (basis of record)
Brachiomonas simplex T.E.Hazen, 1922 (basis of record)
Chlamydomonas pulsatilla H.W.Wollenweber, 1926 (basis of record)
Choanocystis (basis of record)
Choanocystis aculeata (Hertwig & Lesser) Roijackers & Siemensma, 1988 (basis of record)
Chromadorita fennica Jensen, 1979 (basis of record)
Clautriavia cavus Lee & Patterson (basis of record)
Cochliopodium gulosum (Schaefer, 1926) Kudryavtsev, 2000 (basis of record)
Cothurnia coarctata Kahl, 1933 (basis of record)
Dunaliella primolecta Butcher, 1959 (basis of record)
Eumonhystera filiformis (Bastian, 1865) Andrássy, 1981 (basis of record)
Hartmannella vermiformis Page, 1967 (basis of record)
Hemiophrys accepted as Amphileptus Ehrenberg, 1830 (basis of record)
Hemiophrys filum Gruber, 1884 accepted as Amphileptus filum Gruber, 1884 (basis of record)
Heteronema globiferum (Ehrenberg) accepted as Heteronema globuliferum (Ehrenberg) Stein, 1878 (basis of record)
Hexamita inflata Dujardin, 1841 (basis of record)
Holophrya haplostoma André, 1916 (basis of record)
Korotnevella discophora (basis of record)
Luffisphaera striata Thomsen ex Vørs (basis of record)
Massisteria Larsen & Patterson, 1990 (basis of record)
Massisteria marina Larsen & Patterson, 1990 (basis of record)
Mastigamoeba F.E.Schulze, 1875 (basis of record)
Mastigamoeba schizophrenia Simpson, Bernard, Fenchel & Patterson, 1997 (basis of record)
Mayorella verspertlioides (basis of record)
Multicilia Cienkowski, 1881 (basis of record)
Multicilia marina (basis of record)
Nitocra spinipes Boeck, 1865 represented as Nitocra spinipes spinipes Boeck, 1865 (basis of record)
Notosolenus urceolatus Larsen & Patterson (basis of record)
Paracanthonchus bothnicus Schiemer et al., 1983 (basis of record)
Paraphysomonas foraminifera I.A.N.Lucas, 1967 (basis of record)
Peranema fusiforme Larsen (basis of record)
Percolomonas Fenchel & D.J.Patterson, 1986 (basis of record)
Percolomonas cosmopolita (Ruinen) Fenchel & Patterson (basis of record)
Peridiniella catenata (Levander) Balech, 1977 (additional source)
Pseudotrichomonas (basis of record)
Pseudotrichomonas keilini Bishop, 1939 (basis of record)
Ptychopera tuberculata (Graff, 1882) Den Hartog, 1964 (basis of record)
Rabdiophrys (basis of record)
Rabdiophrys candelabrum (Thomsen) Roijackers & Siemensma, 1988 (basis of record)
Rabdiophrys circulata Thomsen (unpubl) (basis of record)
Rabdiophrys denticulata (Thomsen) Roijackers & Siemensma, 1988 (basis of record)
Rabdiophrys multicosta (Thomsen) Roijackers & Siemensma, 1988 (basis of record)
Rabdiophrys paucipora (Thomsen) Roijackers & Siemensma, 1988 (basis of record)
Rabdiophrys reticulata (Thomsen) Roijackers & Siemensma, 1988 (basis of record)
Rabdiophrys spiculata (Manton & Sutherlans) Roijackers & Siemensma, 1988 (basis of record)
Rhynchobodo thiophila (Skuja, 1956) (basis of record)
Rotalia beccarii (Linnaeus, 1758) accepted as Ammonia beccarii (Linnaeus, 1758) (basis of record)
Strombidium siculum Montagnes & Taylor, 1994 accepted as Parallelostrombidium siculum (Montagnes & Taylor, 1994) Agatha, 2004 (basis of record)
Trepomonas Dujardin, 1841 (basis of record)
Trepomonas agilis Dujardin, 1841 (basis of record)
Vannella miroides (basis of record)
Zoothamnium elegans d'Udekem, 1862 (basis of record)