Allopyge Johnston, 1913 (identification resource)
Allopyge antigones Johnston, 1913 (redescription)
Cyclocoelidae Stossich, 1903 (identification resource)
Cyclocoelinae Stossich, 1903 (identification resource)
Cyclocoelum Brandes, 1892 (identification resource)
Cyclocoelum (Pseudhyptiasmus) vagum Morishita, 1924 (redescription)
Cyclocoelum allahabadi Khan, 1935 accepted as Selfcoelum allahabadi (Khan, 1935) Dronen & Blend, 2015 (redescription)
Cyclocoelum capellum Khan, 1935 accepted as Selfcoelum capellum (Khan, 1935) Dronen & Blend, 2015 (redescription)
Cyclocoelum erythropis Khan, 1935 accepted as Selfcoelum allahabadi (Khan, 1935) Dronen & Blend, 2015 (redescription)
Cyclocoelum halli Harrah, 1922 accepted as Harrahium halli (Harrah, 1922) Witenberg, 1926 (redescription)
Cyclocoelum indicum Khan, 1935 accepted as Selfcoelum allahabadi (Khan, 1935) Dronen & Blend, 2015 (redescription)
Cyclocoelum makii Yamaguti, 1933 accepted as Selfcoelum makii (Yamaguti, 1933) Dronen & Blend, 2015 (redescription)
Cyclocoelum mutabile (Zeder, 1800) Brandes, 1892 (redescription)
Cyclocoelum obliquum Harrah, 1921 accepted as Selfcoelum obliquum (Harrah, 1921) Dronen & Blend, 2015 (redescription)
Cyclocoelum obscurum (Leidy, 1887) Harrah, 1922 (redescription)
Cyclocoelum orientale Skrjabin, 1913 accepted as Selfcoelum orientale (Skrjabin, 1913) Dronen & Blend, 2015 (redescription)
Cyclocoelum pseudomicrostomum Harrah, 1922 (redescription)
Cyclocoelum straightum Khan, 1935 accepted as Morishitium straightum (Khan, 1935) Yamaguti, 1958 (redescription)
Cyclocoelum theophili Dollfus, 1948 accepted as Selfcoelum theophili (Dollfus, 1948) Dronen & Blend, 2015 (redescription)
Cyclocoelum vicarium (Arnsdorff, 1908) Kossack, 1911 accepted as Selfcoelum vicarium (Arnsdorff, 1908) Dronen & Blend, 2015 (redescription)
Haematotrephus Stossich, 1903 (identification resource)
Haematotrephus brasilianum (Stossich, 1903) Kossack, 1911 accepted as Selfcoelum brasilianum (Stossich, 1903) Dronen & Blend, 2015 (redescription)
Haematotrephus capellae (Yamaguti, 1933) Baschkirova, 1950 (new combination reference)
Haematotrephus capellae (Yamaguti, 1933) Baschkirova, 1950 (redescription)
Haematotrephus kossacki (Witenberg, 1923) Baschkirova, 1950 (new combination reference)
Haematotrephus kossacki (Witenberg, 1923) Baschkirova, 1950 (redescription)
Haematotrephus nebularium (Khan, 1935) Lal, 1939 (redescription)
Haematotrephus similis Stossich, 1903 accepted as Uvitellina simile (Stossich, 1903) Dronen & Blend, 2015 (redescription)
Haematotrephus tringae (Brandes, 1892) Stossich, 1903 accepted as Harrahium tringae (Brandes, 1892) Dronen & Blend, 2015 (redescription)
Hyptiasmus Kossack, 1911 (identification resource)
Hyptiasmus arcuatus (Brandes, 1892) Kossack, 1911 (redescription)
Hyptiasmus brumpti Dollfus, 1948 (redescription)
Hyptiasmus laevigatus Kossack, 1911 (redescription)
Hyptiasmus magniproles Witenberg, 1928 (redescription)
Hyptiasmus theodori Witenberg, 1928 (redescription)
Hyptiasmus witenbergi Tretyakova in Baschkirova, 1950 (original description)
Nyroca clangula (Linnaeus, 1758) accepted as Bucephala clangula (Linnaeus, 1758) (basis of record)
Ophthalmophagus Stossich, 1903 (identification resource)
Ophthalmophagus charadrii Yamaguti, 1934 (redescription)
Ophthalmophagus magalhaesi Travassos, 1921 (redescription)
Ophthalmophagus nasicola Witenberg, 1926 (redescription)
Ophthalmophagus singularis Stossich, 1903 (redescription)
Prohyptiasmus Witenberg, 1923 (identification resource)
Prohyptiasmus magnus (Johnston, 1917) Dubinina, 1948 (source of synonymy)
Prohyptiasmus robustus (Stossich, 1903) Witenberg, 1923 accepted as Cyclocoelum robustum Stossich, 1903 (redescription)
Spaniometra Kossack, 1911 (identification resource)
Spaniometra oculobia (Cohn, 1902) Kossack, 1911 (redescription)
Transcoelum Witenberg, 1923 accepted as Hyptiasmus Kossack, 1911 (identification resource)
Transcoelum oculeus (Kossack, 1911) Witenberg, 1923 accepted as Hyptiasmus oculeus Kossack, 1911 (redescription)
Typhlocoelinae Harrah, 1922 (identification resource)
Typhlocoelum Stossich, 1903 (identification resource)
Typhlocoelum cucumerinum (Rudolphi, 1809) Stossich, 1903 (redescription)
Typhlocoelum gambense Dubois, 1930 accepted as Typhlocoelum cucumerinum (Rudolphi, 1809) Stossich, 1903 (source of synonymy)
Typhlocoelum shovellus (Lal, 1936) Baschkirova, 1950 accepted as Typhlocoelum cucumerinum (Rudolphi, 1809) Stossich, 1903 (new combination reference)
Typhlocoelum shovellus (Lal, 1936) Baschkirova, 1950 accepted as Typhlocoelum cucumerinum (Rudolphi, 1809) Stossich, 1903 (redescription)
Uvitellina Witenberg, 1923 (identification resource)
Uvitellina adelphus (Johnston, 1917) Witenberg, 1928 (redescription)
Uvitellina dollfusi Tseng, 1930 accepted as Uvitellina adelphus (Johnston, 1917) Witenberg, 1928 (redescription)
Uvitellina keri Yamaguti, 1933 accepted as Uvitellina vanelli (Rudolphi, 1819) Dollfus, 1948 (redescription)
Uvitellina pseudocotylea Witenberg, 1923 (redescription)
Uvitellina vanelli (Rudolphi, 1819) Dollfus, 1948 (redescription)
Wardianum Witenberg, 1923 (identification resource)
Wardianum taxorchis (Johnston, 1917) Witenberg, 1928 (redescription)
Wardianum triangulare (Harrah, 1922) Witenberg, 1926 (redescription)

Africa for Wardianum triangulare (Harrah, 1922) Witenberg, 1926 
Australia for Allopyge antigones Johnston, 1913 
Australia for Prohyptiasmus robustus (Stossich, 1903) Witenberg, 1923 
Australian Exclusive Economic Zone for Wardianum taxorchis (Johnston, 1917) Witenberg, 1928 
Brazil for Haematotrephus brasilianum (Stossich, 1903) Kossack, 1911 
Brazil for Typhlocoelum cucumerinum (Rudolphi, 1809) Stossich, 1903 
Central Europe for Cyclocoelum vicarium (Arnsdorff, 1908) Kossack, 1911 
Egypt for Haematotrephus similis Stossich, 1903 
Formosa for Cyclocoelum makii Yamaguti, 1933 
France for Hyptiasmus brumpti Dollfus, 1948 
Germany for Hyptiasmus arcuatus (Brandes, 1892) Kossack, 1911 
Germany for Hyptiasmus laevigatus Kossack, 1911 
Germany for Prohyptiasmus robustus (Stossich, 1903) Witenberg, 1923 
Germany for Spaniometra oculobia (Cohn, 1902) Kossack, 1911 
Holarctic for Cyclocoelum mutabile (Zeder, 1800) Brandes, 1892 
India for Cyclocoelum indicum Khan, 1935 
India for Cyclocoelum mutabile (Zeder, 1800) Brandes, 1892 
Indian Exclusive Economic Zone for Cyclocoelum vicarium (Arnsdorff, 1908) Kossack, 1911 
Japan for Cyclocoelum (Pseudhyptiasmus) vagum Morishita, 1924 
Japan for Ophthalmophagus nasicola Witenberg, 1926 
Japan for Uvitellina pseudocotylea Witenberg, 1923 
Japan for Uvitellina vanelli (Rudolphi, 1819) Dollfus, 1948 
Japanese Exclusive Economic Zone for Haematotrephus capellae (Yamaguti, 1933) Baschkirova, 1950 
Japanese Exclusive Economic Zone for Ophthalmophagus charadrii Yamaguti, 1934 
Japanese Exclusive Economic Zone for Uvitellina keri Yamaguti, 1933 
Jiangsu for Uvitellina dollfusi Tseng, 1930 
Jordan for Hyptiasmus magniproles Witenberg, 1928 
Labrador Basin for Cyclocoelum vicarium (Arnsdorff, 1908) Kossack, 1911 
Morocco for Cyclocoelum theophili Dollfus, 1948 
North America for Cyclocoelum obscurum (Leidy, 1887) Harrah, 1922 
North America for Cyclocoelum pseudomicrostomum Harrah, 1922 
North America for Wardianum triangulare (Harrah, 1922) Witenberg, 1926 
Palestine for Hyptiasmus theodori Witenberg, 1928 
Rio de Janeiro for Ophthalmophagus magalhaesi Travassos, 1921 
Rostov for Haematotrephus kossacki (Witenberg, 1923) Baschkirova, 1950 
Rostov for Hyptiasmus laevigatus Kossack, 1911 
Rostov for Transcoelum oculeus (Kossack, 1911) Witenberg, 1923 
Siberia for Prohyptiasmus robustus (Stossich, 1903) Witenberg, 1923 
South Australia for Uvitellina adelphus (Johnston, 1917) Witenberg, 1928 
South European Russia for Ophthalmophagus nasicola Witenberg, 1926 
Soviet Union for Haematotrephus tringae (Brandes, 1892) Stossich, 1903 
Soviet Union for Hyptiasmus witenbergi Tretyakova in Baschkirova, 1950 
Soviet Union for Typhlocoelum cucumerinum (Rudolphi, 1809) Stossich, 1903 
Soviet Union for Uvitellina pseudocotylea Witenberg, 1923 
Switzerland for Typhlocoelum cucumerinum (Rudolphi, 1809) Stossich, 1903 
Taiwanese Exclusive Economic Zone for Haematotrephus capellae (Yamaguti, 1933) Baschkirova, 1950 
Thailand for Cyclocoelum obliquum Harrah, 1921 
Turkestan for Cyclocoelum orientale Skrjabin, 1913 
United States for Cyclocoelum halli Harrah, 1922 
Uttar Pradesh for Cyclocoelum allahabadi Khan, 1935 
Uttar Pradesh for Cyclocoelum capellum Khan, 1935 
Uttar Pradesh for Cyclocoelum erythropis Khan, 1935 
Uttar Pradesh for Cyclocoelum straightum Khan, 1935 
Uttar Pradesh for Haematotrephus nebularium (Khan, 1935) Lal, 1939 
Uzbekistan for Ophthalmophagus nasicola Witenberg, 1926 
Volga for Prohyptiasmus robustus (Stossich, 1903) Witenberg, 1923