Catatropis Odhner, 1905 (identification resource)
Catatropis charadrii Skrjabin, 1915 (redescription)
Catatropis cygni Yamaguti, 1939 (redescription)
Catatropis filamentis Barker, 1915 accepted as Notocotylus filamentis (Barker, 1915) Harwood, 1939 (redescription)
Catatropis gallinulae Johnston, 1928 (redescription)
Catatropis harwoodi Bullock, 1952 (redescription)
Catatropis hisikui Yamaguti, 1939 (redescription)
Catatropis indicus Srivastava, 1935 (redescription)
Catatropis liara Kossack, 1911 (redescription)
Catatropis orientalis Harshe, 1932 (additional source)
Catatropis pacifera Noble, 1933 accepted as Notocotylus pacifera (Noble, 1933) Harwood, 1939 (redescription)
Catatropis pricei Harwood, 1939 (redescription)
Catatropis verrucosa (Frölich, 1789) Odhner, 1905 (redescription)
Cochleotrema Travassos & Vogelsang, 1931 accepted as Pulmonicola Poche, 1926 (identification resource)
Cochleotrema cochleotrema Travassos & Vogelsang, 1931 accepted as Pulmonicola cochleotrema (Travassos & Vogelsang, 1931) (redescription)
Hemiorchis Mehra, 1939 accepted as Plasmiorchis Mehra, 1934 (identification resource)
Hippocrepis Travassos, 1922 (identification resource)
Hippocrepis fuelleborni Travassos & Vogelsang, 1930 (redescription)
Hippocrepis hippocrepis (Diesing, 1950) Travassos, 1922 (redescription)
Hofmonostomum Harwood, 1939 accepted as Paramonostomum Lühe, 1909 (identification resource)
Hofmonostomum himantopodis Harwood, 1939 accepted as Paramonostomum himantopodis (Harwood, 1939) Cribb, 1991 (redescription)
Neocotyle neocotyle Travassos, 1922 (redescription)
Notocotylidae Lühe, 1909 (identification resource)
Notocotylus Diesing, 1839 (identification resource)
Notocotylus aegyptiaca Odhner, 1905 (redescription)
Notocotylus attenuatus (Rudolphi, 1809) Kossack, 1911 (redescription)
Notocotylus chionis Baylis, 1928 (redescription)
Notocotylus dafilae Harwood, 1939 (redescription)
Notocotylus gibbus (Mehlis in Creplin, 1846) Kossack, 1911 (redescription)
Notocotylus imbricatus (Looss, 1893) Szidat, 1935 (redescription)
Notocotylus indicus Lal, 1935 accepted as Notocotylus babai Bhalerao, 1935 (redescription)
Notocotylus intestinalis Tubangui, 1932 accepted as Pseudonotocotylus intestinalis (Tubangui, 1932) Izrailskaia, Tatonova & Belousova, 2024 (redescription)
Notocotylus linearis (Rudolphi, 1819) Szidat, 1936 (redescription)
Notocotylus lucknowensis (Lal, 1935) Ruiz, 1946 accepted as Notocotylus imbricatus (Looss, 1893) Szidat, 1935 (redescription)
Notocotylus magniovatus Yamaguti, 1934 accepted as Pseudonotocotylus magniovatus (Yamaguti, 1934) Izrailskaia, Tatonova & Belousova, 2024 (redescription)
Notocotylus micropalamae Harwood, 1939 (redescription)
Notocotylus naviformis Tubangui, 1932 (redescription)
Notocotylus neyrai Gonzalez Castro, 1945 (basis of record)
Notocotylus noyeri Joyeux, 1922 (redescription)
Notocotylus orientalis Ku, 1937 accepted as Notocotylus parviovatus Yamaguti, 1934 (source of synonymy)
Notocotylus parviovatus Yamaguti, 1934 (redescription)
Notocotylus porzanae Harwood, 1939 (redescription)
Notocotylus quinqueseriale Barker & Laughlin, 1911 accepted as Quinqueserialis quinqueserialis (Barker & Laughlin, 1911) Harwood, 1939 (redescription)
Notocotylus ralli Baylis, 1936 (redescription)
Notocotylus regis Harwood, 1939 (redescription)
Notocotylus seineti Fuhrmann, 1919 (redescription)
Notocotylus skrjabini Ablasov, 1953 (redescription)
Notocotylus stagnicolae Herber, 1942 (redescription)
Notocotylus tachyeretis Duthoit, 1931 (redescription)
Notocotylus theinemanni Szidat & Szidat, 1933 accepted as Notocotylus attenuatus (Rudolphi, 1809) Kossack, 1911 (redescription)
Notocotylus urbanensis (Cort, 1914) Harrah, 1922 (redescription)
Notocotylus wolgaensis Skvortsov, 1935 accepted as Notocotylus (Quinqueserialis) wolgaensis Skvortsov, 1935 accepted as Quinqueserialis hassalli (McIntosh & McIntosh, 1934) Harwood, 1939 (redescription)
Nudacotyle Barker, 1916 (identification resource)
Nudacotyle novicia Barker, 1916 (redescription)
Nudacotyle tertius Travassos, 1939 (redescription)
Nudacotyle valdevaginatus Travassos, 1922 (redescription)
Nudacotylidae Barker, 1916 (identification resource)
Ogmocotyle indica (Bhalerao, 1942) Ruiz, 1946 (redescription)
Ogmocotyle pygargi Skrjabin & Schulz, 1933 (source of synonymy)
Ogmogaster Jägerskiöld, 1891 (identification resource)
Ogmogaster antarcticus Johnston, 1931 accepted as Ogmogaster antarctica Johnston, 1931 (redescription)
Ogmogaster plicata (Creplin, 1829) Jägerskiöld, 1891 (redescription)
Opisthotrema Fischer, 1884 (identification resource)
Opisthotrema dujonis (Leuckart, 1874) Price, 1932 (redescription)
Opisthotrematidae Poche, 1926 (identification resource)
Paramonostomum Lühe, 1909 (identification resource)
Paramonostomum alveatum (Mehlis in Creplin, 1846) Lühe, 1909 (redescription)
Paramonostomum brantae Bullock, 1952 (redescription)
Paramonostomum bucephalae Yamaguti, 1935 (redescription)
Paramonostomum casarcum Lal, 1936 (redescription)
Paramonostomum echinum Harrah, 1922 (redescription)
Paramonostomum elongatum Yamaguti, 1934 (redescription)
Paramonostomum ionorne Travassos, 1921 (redescription)
Paramonostomum microstomum Moghe, 1932 (redescription)
Paramonostomum parvum Stunkard & Dunihue, 1931 (redescription)
Paramonostomum pseudalveatum Price, 1931 accepted as Paramonostomum parvum Stunkard & Dunihue, 1931 (redescription)
Paramonostomum querquedulum Lal, 1936 accepted as Paramonostomum casarcum Lal, 1936 (redescription)
Pulmonicola Poche, 1926 (identification resource)
Pulmonicola pulmonalis (von Linstow, 1904) Poche, 1926 (redescription)
Quinqueserialis Skvortsov, 1935 (ecology source)
Quinqueserialis hassalli (McIntosh & McIntosh, 1934) Harwood, 1939 (redescription)
Rhabdiopoeidae Poche, 1926 (identification resource)
Rhabdiopoeus Johnston, 1913 (identification resource)
Rhabdiopoeus taylori Johnston, 1913 (redescription)
Tristriata Belopolskaja in Skrjabin, 1953 (original description)
Tristriata anatis Belopolskaja in Skrjabin, 1953 (original description)