1. Subgenus Distomum (Polyorchis) Stossich, 1888 accepted as Pleorchis Railliet, 1896 (preoccupied, synonym)
2. Species Distomum acanthocephalum Stossich, 1887 accepted as Tergestia acanthocephala (Stossich, 1887) Stossich, 1899 accepted as Theledera acanthocephala (Stossich, 1887) Bray & Gibson, 1980 (Superseded combination)
3. Species Distomum aduncum Linton, 1905 accepted as Levinseniella adunca (Linton, 1905) accepted as Gynaecotyla adunca (Linton, 1905) Yamaguti, 1939 (Superseded combination)
4. Species Distomum affine Diesing, 1850 accepted as Didymozoon tenuicolle (Rudolphi, 1819) Kossack, 1911 accepted as Koellikeria tenuicolle (Rudolphi, 1819) MacCallum & MacCallum, 1916 accepted as Neolamprididymozoon tenuicolle (Rudolphi, 1819) Wierzbicka, 1982 (synonym)
5. Species Distomum alacre Looss, 1901 accepted as Allocreadium alacre (Looss, 1901) Stossich, 1905 accepted as Plagioporus alacris (Looss, 1901) Price, 1934 accepted as Macvicaria alacris (Looss, 1901) Gibson & Bray, 1982 (unaccepted > superseded combination)
6. Species Distomum album Stossich, 1890 accepted as Lepocreadium album (Stossich, 1890) Stossich, 1904 (Superseded combination)
7. Species Distomum aloysiae Stossich, 1885 accepted as Anoiktostoma aloysiae (Stossich, 1885) Stiles & Hassall, 1908 accepted as Paracryptogonimus aloysiae (Stossich, 1885) Bartoli & Gibson, 1995 accepted as Siphoderina aloysiae (Stossich, 1885) Miller & Cribb, 2008 (Superseded combination)
8. Species Distomum amphiorchis Braun, 1899 accepted as Orchidasma amphiorchis (Braun, 1899) Looss, 1900 (Superseded combination)
9. Species Distomum appendiculatum Rudolphi, 1802 accepted as Hemiurus appendiculatus (Rudolphi, 1802) Looss, 1899 (unaccepted > superseded combination)
10. Species Distomum areolatum Linton, 1900 accepted as Lepocreadium areolatum (Linton, 1900) Stunkard, 1969 (unaccepted > superseded combination)
11. Species Distomum bacillare Molin, 1859 accepted as Opechona bacillaris (Molin, 1859) Dollfus, 1927 (unaccepted > superseded combination)
12. Species Distomum baculus Diesing, 1850 accepted as Echinoparyphium baculus (Diesing, 1850) Lühe, 1909 (unaccepted > superseded combination)
13. Species Distomum benedenii Stossich, 1887 accepted as Haploporus benedenii (Stossich, 1887) Looss, 1902 (Superseded combination)
14. Species Distomum betencourti Monticelli, 1893 accepted as Diphterostomum betencourti (Monticelli, 1893) Odhner, 1911 (Superseded combination)
15. Species Distomum bicoronatum Stossich, 1883 accepted as Stephanostomum bicoronatum (Stossich, 1883) Fuhrmann, 1928 (Superseded combination)
16. Species Distomum bonnieri Monticelli, 1893 accepted as Derogenes bonnieri (Monticelli, 1893) (Superseded combination)
17. Species Distomum brusinae Stossich, 1888 accepted as Diphterostomum brusinae (Stossich, 1888) Stossich, 1904 (Superseded combination)
18. Species Distomum calyptrocotyle Monticelli, 1893 accepted as Odhnerium calyptocotyle (Monticelli, 1893) Yamaguti, 1934 (unaccepted > superseded combination)
19. Species Distomum carangis MacCallum, 1913 accepted as Gorgoderina carangis (MacCallum, 1913) Yamaguti, 1971 accepted as Cetiotrema carangis (MacCallum, 1913) Williams & Bunkley-Williams, 1996 accepted as Phyllodistomum carangis (MacCallum, 1913) Cutmore & Cribb, 2018 (Superseded combination)
20. Species Distomum carolinae Stossich, 1888 accepted as Pronopyge carolinae (Stossich, 1888) Dollfus, 1968 accepted as Pronoprymna ventricosa (Rudolphi, 1819) Poche, 1926 (unaccepted > junior subjective synonym)
21. Species Distomum catervarium Looss, 1896 accepted as Walliniella catervaria (Looss, 1896) Yamaguti, 1971 (unaccepted > superseded combination)
22. Species Distomum cesticillus Molin, 1858 accepted as Stephanostomum cesticillus (Molin, 1858) Looss, 1899 (Superseded combination)
23. Species Distomum characis Stossich, 1886 accepted as Peracreadium characis (Stossich, 1886) Bartoli, Gibson & Bray, 1989 (unaccepted > superseded combination)
24. Species Distomum claviforme Brandes, 1889 accepted as Spelotrema claviforme (Brandes, 1889) Nicoll, 1909 accepted as Microphallus claviformis (Brandes, 1889) Baer, 1944 (Superseded combination)
25. Species Distomum cochlear Diesing, 1850 accepted as Galactosomum cochlear (Diesing, 1850) Travassos, 1929 (Superseded combination)
26. Species Distomum corpulentum Linton, 1905 accepted as Steringotrema corpulentum (Linton, 1905) Manter, 1931 (Superseded combination)
27. Species Distomum corvinae Stossich, 1886 accepted as Anoiktostoma coronatum (Wagener, 1852) Stossich, 1899 (unaccepted > junior subjective synonym)
28. Species Distomum crenatum Molin, 1859 accepted as Lecithocladium crenatum (Molin, 1859) Looss, 1907 accepted as Lecithocladium excisum (Rudolphi, 1819) Lühe, 1901 (Superseded combination)
29. Species Distomum croaticum Stossich, 1889 accepted as Aporchis croaticus (Stossich, 1889) Stossich, 1905 (unaccepted > superseded combination)
30. Species Distomum delphini Poirier, 1886 accepted as Cladocoelium delphini (Poirier, 1886) accepted as Brachycladium delphini (Poirier, 1886) Looss, 1899 (Superseded combination)
31. Species Distomum dendricum van Beneden, 1870 accepted as Distoma dendriticum Rudolphi, 1819 accepted as Dicrocoelium dendriticum (Rudolphi, 1819) Looss, 1899. (lapsus)
32. Species Distomum dentatum Linton, 1900 accepted as Stephanostomum dentatum (Linton, 1900) Linton, 1940 (unaccepted > superseded combination)
33. Species Distomum depressum Stossich, 1883 accepted as Metadena depressa (Stossich, 1883) Janiszewska, 1953 (Superseded combination)
34. Species Distomum dicorynum Diesing, 1850 accepted as Didymozoon tenuicolle (Rudolphi, 1819) Kossack, 1911 accepted as Koellikeria tenuicolle (Rudolphi, 1819) MacCallum & MacCallum, 1916 accepted as Neolamprididymozoon tenuicolle (Rudolphi, 1819) Wierzbicka, 1982 (synonym)
35. Species Distomum erinaceum Poirier, 1886 accepted as Astiotrema erinacea (Poirier, 1886) Stossich, 1904 accepted as Galactosomum erinaceum (Poirier, 1886) Bittner & Sprehn, 1928 (unaccepted > superseded combination)
36. Species Distomum fenestratum Linton, 1907 accepted as Torticaecum fenestratum (Linton, 1907) Yamaguti, 1942 (Synonym)
37. Species Distomum filiferum Leuckart in Sars, 1885 accepted as Syncoelium filiferum (Leuckart in Sars, 1885) Guberlet, 1934 accepted as Copiatestes filiferus (Leuckart in Sars, 1885) Gibson & Bray, 1977 (Superseded combination)
38. Species Distomum flexum Linton, 1892 accepted as Echinoparyphium flexum (Linton, 1892) McCoy, 1927 (unaccepted > superseded combination)
39. Species Distomum foliatum Linton, 1898 accepted as Accacoelium foliatum (LInton, 1898) Stafford, 1904 accepted as Mneiodhneria foliata (Linton, 1898) Dollfus, 1935 accepted as Odhnerium calyptocotyle (Monticelli, 1893) Yamaguti, 1934 (unaccepted > superseded combination)
40. Species Distomum fragile Linton, 1900 accepted as Stenocollum fragile (Linton, 1900) Stafford, 1904 accepted as Dihemistephanus fragilis (Linton, 1900) Yamaguti, 1971 (Superseded combination)
41. Species Distomum furcatum Bremser in Rudolphi, 1819 accepted as Opecoeloides furcatus (Bremser in Rudolphi, 1819) Odhner, 1928 (unaccepted > superseded combination)
42. Species Distomum gastrophilum Kossack, 1910 accepted as Pholeter gastrophilus (Kossack, 1910) Odhner, 1914 (Superseded combination)
43. Species Distomum geniculatum Diesing, 1850 accepted as Distoma physophorae Koelliker, 1849 (unaccepted > unjustified emendation)
44. Species Distomum gobii Stossich, 1883 accepted as Helicometra gobii (Stossich, 1883) Stossich, 1904 (unaccepted > superseded combination)
45. Species Distomum gulosum Linton, 1901 accepted as Lecithocladium gulosum (Linton, 1901) Looss, 1908 (unaccepted > superseded combination)
46. Species Distomum gyrinus Linton, 1907 accepted as Eurypera gyrina (Linton, 1907) Manter, 1933 accepted as Megapera gyrina (Linton, 1907) Manter, 1934 (unaccepted > superseded combination)
47. Species Distomum halosauri Bell, 1887 accepted as Degeneria halosauri (Bell, 1887) Campbell, 1977
48. Species Distomum imbutiforme Molin, 1959 accepted as Acanthostomum imbutiforme (Molin, 1859) Gohar, 1934 accepted as Timoniella imbutiforme (Molin, 1859) Brooks, 1980 accepted as Timoniella imbutiformis (Molin, 1859) Brooks, 1980 (unaccepted > superseded combination)
49. Species Distomum imparispine Linton, 1905 accepted as Stephanostomum imparispine (Linton, 1905) Manter, 1940 (Superseded combination)
50. Species Distomum inflatum Molin, 1859 accepted as Deropristis inflata (Molin, 1859) Odhner, 1902 (Superseded combination)
51. Species Distomum insigne Diesing, 1850 accepted as Otodistomum veliporum (Creplin, 1837) Stafford, 1904 (Synonym)
52. Species Distomum italicum Stossich, 1893 accepted as Sclerodistomum italicum (Stossich, 1893) Looss, 1912 (Superseded combination)
53. Species Distomum labri Stossich, 1886 accepted as Helicometra labri (Stossich, 1886) Issaitschikov, 1928 accepted as Helicometra fasciata (Rudolphi, 1819) Odhner, 1902 (Superseded combination)
54. Species Distomum laeve Linton, 1898 accepted as Dissosaccus laevis (Linton, 1898) Manter, 1947 (Superseded combination)
55. Species Distomum lageniforme Linton, 1898 accepted as Hirudinella ventricosa (Pallas, 1774) Baird, 1853 (unaccepted > junior subjective synonym)
56. Species Distomum lamelliforme Linton, 1907 accepted as Hypocreadium lamelliforme (Linton, 1907) Bravo Hollis & Manter, 1957
57. Species Distomum lancea Diesing, 1850 accepted as Opisthorchis lancea (Diesing, 1850) accepted as Amphimerus lancea (Diesing, 1850) Barker, 1911 (Superseded combination)
58. Species Distomum lasium Leidy, 1891 accepted as Zoogonus lasius (Leidy, 1891) Stunkard, 1940 (unaccepted > superseded combination)
59. Species Distomum levenseni Linton, 1907 accepted as Lepidapedon levenseni (Linton, 1907) Manter, 1947 accepted as Lepidapedoides levenseni (Linton, 1907) Yamaguti, 1971 (unaccepted > superseded combination)
60. Species Distomum macrocotyle Diesing, 1858 accepted as Accacladocoelium macrocotyle (Diesing, 1858) Robinson, 1934 (unaccepted > superseded combination)
61. Species Distomum macrorhinis MacCallum, 1916 accepted as Cryptocotyle macrorhinis (MacCallum, 1916) Yamaguti, 1971 accepted as Cryptocotyle lingua (Creplin, 1825) Fischoeder, 1903 (superseded combination)
62. Species Distomum maculatum Looss, 1901 accepted as Proctoeces maculatus (Looss, 1901) Odhner, 1911 (unaccepted > superseded combination)
63. Species Distomum micracanthum Stossich, 1889 accepted as Holorchis micracanthum (Stossich, 1889) Orecchia & Paggi, 1974
64. Species Distomum microporum Monticelli, 1899 accepted as Apoblema microporum (Monticelli, 1889) Monticelli, 1891 accepted as Hemiurus microporum (Monticelli, 1889) Looss, 1899 accepted as Botulus microporus (Monticelli, 1889) Gibson & Bray, 1977 (Superseded combination)
65. Species Distomum mollissimum Levinsen, 1881 accepted as Lecithaster gibbosus (Rudolphi, 1802) Lühe, 1901 (unaccepted > junior subjective synonym)
66. Species Distomum monorchis Stossich, 1890 accepted as Monorchis monorchis (Stossich, 1890) Looss, 1902 (Superseded combination)
67. Species Distomum monticellii Linton, 1898 accepted as Hemiurus monticellii (Linton, 1898) accepted as Sterrhurus monticellii (Linton, 1898) accepted as Lecithochirium monticellii (Linton, 1898) Skrjabin & Guschanskaja, 1955 (unaccepted > superseded combination)
68. Species Distomum mormyri Stossich, 1885 accepted as Macvicaria mormyri (Stossich, 1885) Bartoli, Gibson & Bray, 1993 (unaccepted > superseded combination)
69. Species Distomum muelleri Levinsen, 1881 accepted as Progonus muelleri (Levinsen, 1881) Looss, 1899 (Superseded combination)
70. Species Distomum mulli Stossich, 1883 accepted as Lasiotocus mulli (Stossich, 1883) Odhner, 1911 (unaccepted > superseded combination)
71. Species Distomum nitens Linton, 1898 accepted as Lecithostaphylus nitens (Linton, 1898) Linton, 1940 (unaccepted > superseded combination)
72. Species Distomum obovatum Molin, 1859 accepted as Plagioporus obovatus (Molin, 1859) Yamaguti, 1971 accepted as Macvicaria obovata (Molin, 1859) Bartoli, Bray & Gibson, 1989 (unaccepted > superseded combination)
73. Species Distomum ocreatum (Rudolphi, 1802) accepted as Hemiurus luehei Odhner, 1905 (unaccepted > junior subjective synonym)
74. Species Distomum oculatum Levinsen, 1881 accepted as Neophasis oculata (Levinsen, 1881) Miller, 1941 (Superseded combination)
75. Species Distomum osculatum Looss, 1901 accepted as Tormopsolus osculatus (Looss, 1901) Poche, 1926 (Superseded combination)
76. Species Distomum palliatum Looss, 1885 accepted as Cladocoelium palliatum (Looss, 1885) Stossich, 1892 accepted as Brachycladium palliatum (Looss, 1885) Looss, 1899 (Superseded combination)
77. Species Distomum papillosum Diesing, 1858 accepted as Distoma beroes Will, 1844 (unaccepted > junior objective synonym)
78. Species Distomum pedicellatum Stossich, 1887 accepted as Allopodocotyle pedicellata (Stossich, 1887) Pritchard, 1966
79. Species Distomum polonii Molin, 1859 accepted as Prodistomum polonii (Molin, 1859) Bray & Gibson, 1990 (Superseded combination)
80. Species Distomum polyorchis Stossich, 1889 accepted as Pleorchis polyorchis (Stossich, 1888) Stiles, 1896 (synonym)
81. Species Distomum pristiophori Johnston, 1902 accepted as Otodistomum pristiophori (Johnston, 1902) Woolcock, 1935 (Superseded combination)
82. Species Distomum pudens Linton, 1900 accepted as Pseudolepidapedon pudens (Linton, 1900) Yamaguti, 1971 (synonym)
83. Species Distomum pygmaeum Levinsen, 1881 accepted as Microphallus pygmaeus (Levinsen, 1881) Baer, 1944 (Superseded combination)
84. Species Distomum pyriforme Linton, 1900 accepted as Opechona pyriformis (Linton, 1900) Bray & Gibson, 1990 (Superseded combination)
85. Species Distomum ragazzii Setti, 1897 accepted as Syncoelium ragazzii (Setti, 1897) Looss, 1899 (synonym)
86. Species Distomum retroflexum Molin, 1859 accepted as Lecithostaphylus retroflexus (Molin, 1859) Odhner, 1911 (Superseded combination)
87. Species Distomum rochebruni Poirier, 1886 accepted as Cladocoelium rochebruni (Poirier, 1886) Stossich, 1892 accepted as Brachycladium rochebruni (Poirier, 1886) Looss, 1899 accepted as Campula rochebruni (Poirier, 1886) Bittner & Sprehn, 1928 accepted as Oschmarinella rochebruni (Poirier, 1886) Gibson & Bray, 1997 (Superseded combination)
88. Species Distomum scyphocephalum Braun, 1899 accepted as Acanthochasmus scyphocephalus (Braun, 1899) Braun, 1901 accepted as Acanthostomum scyphocephalum (Braun, 1899) Hughes, Higginbotham & Clary, 1941 accepted as Proctocaecum scyphocephalum (Braun, 1899) Lamothe-Argumedo & Ponciano-Rodriguez, 1986 accepted as Timoniella scyphocephala (Braun, 1899) Brooks, 1980 (Superseded combination)
89. Species Distomum simplex (Rudolphi, 1809) Diesing, 1850 accepted as Podocotyle simplex (Rudolphi, 1809) Srivastava, 1966 (Superseded combination)
90. Species Distomum sobrinum Levinsen, 1881 accepted as Stephanostomum sobrinum (Levinsen, 1881) Looss, 1899
91. Species Distomum soccus Molin, 1858 accepted as Ptychogonimus megastomum (Rudolphi, 1819) Lühe, 1900 (synonym)
92. Species Distomum somateriae Levinsen, 1881 accepted as Gymnophallus somateriae (Levinsen, 1881) Odhner, 1900
93. Species Distomum sophiae Stossich, 1886 accepted as Lepocreadium sophiae (Stossich, 1886) Dollfus, 1969 accepted as Homalometron sophiae (Stossich, 1886) Yamaguti, 1971 (unaccepted > superseded combination)
94. Species Distomum spiculiferum MacCallum, 1919 accepted as Deropristis hispida (Abildgaard in Rudolphi, 1819) Odhner, 1902 (Synonym)
95. Species Distomum subtenue Linton, 1907 accepted as Proctoeces subtenuis (Linton, 1907) Hanson, 1950 accepted as Proctoeces maculatus (Looss, 1901) Odhner, 1911 (unaccepted > superseded combination)
96. Species Distomum tenue Linton, 1898 accepted as Stephanochasmus tenuis (Linton, 1898) Linton, 1908 accepted as Stephanostomum tenue (Linton, 1898) Linton, 1934 (Superseded combination)
97. Species Distomum tergestinum Stossich, 1888 accepted as Steringotrema pagelli (van Beneden, 1871) Odhner, 1911 (synonym)
98. Species Distomum tomex Linton, 1907 accepted as Gonapodasmius tomex (Linton, 1907) Yamaguti, 1971 accepted as Didymodiclinus tomex (Linton, 1907) Pozdnyakov, 1994 (Superseded combination)
99. Species Distomum trachinoti MacCallum, 1913 accepted as Gonocercella trachinoti (MacCallum, 1913) Yamaguti, 1954
100. Species Distomum trulla Linton, 1907 (unaccepted > superseded combination)
101. Species Distomum umbrinae Stossich, 1885 (unaccepted)
102. Species Distomum unicum Molin, 1859 (unaccepted, Superseded combination)
103. Species Distomum valdeinflatum Stossich, 1883 (unaccepted, Superseded combination)
104. Species Distomum ventricosum (Pallas, 1774) Monticelli, 1893 (unaccepted > superseded combination)
105. Species Distomum verrucosum Molin, 1859 (unaccepted, Superseded combination)
106. Species Distomum vibex Linton, 1900 (unaccepted > superseded combination)
107. Species Distomum vitellosum Linton, 1900 (unaccepted > superseded combination)
108. Species Distomum albocoeruleum Stossich, 1888 (uncertain > taxon inquirendum)
109. Species Distomum calceolus Molin, 1858 (uncertain > taxon inquirendum)
110. Species Distomum cestiveneris Diesing, 1858 (uncertain > taxon inquirendum)
111. Species Distomum fabenii Molin, 1859 (uncertain > taxon inquirendum)
112. Species Distomum foliaceum Molin, 1859 (uncertain > taxon inquirendum)
113. Species Distomum giardii Stossich, 1888 (uncertain > taxon inquirendum)
114. Species Distomum hemiciclum Molin, 1859 (uncertain > taxon inquirendum)
115. Species Distomum ocreatum Molin, 1859 (uncertain > taxon inquirendum)
116. Species Distomum papilliferum Molin, 1859 (uncertain > taxon inquirendum)
117. Species Distomum pelagicum Stafford, 1900 (uncertain > taxon inquirendum)
118. Species Distomum serpentatum Molin, 1859 (uncertain > taxon inquirendum)

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