Anthus obscurus (basis of record)
Clangula histrionica pacifica (basis of record)
Daphila aurata (basis of record)
Diacetabulum Belopolskaja, 1952 (original description)
Diacetabulum curvicolon Belopolskaja, 1952 (original description)
Endocotyle Belopolskaja, 1952 (original description)
Endocotyle incana Belopolskaja, 1952 (original description)
Gynaecotyla Yamaguti, 1939 (identification resource)
Gynaecotyla adunca (Linton, 1905) Yamaguti, 1939 (redescription)
Gynaecotyla jaegerskioeldi (Travassos, 1921) Yamaguti, 1939 accepted as Gynaecotyla adunca (Linton, 1905) Yamaguti, 1939 (redescription)
Gynaecotyla simillima (Travassos, 1921) Yamaguti, 1939 accepted as Microphallus simillimus (Travassos, 1921) Martorelli, 1991 (redescription)
Gynaecotyla sippiwissettensis (Rankin, 1939) Baer, 1944 accepted as Gynaecotyla nassicola (Cable & Hunninen, 1938) Rankin, 1940 (redescription)
Gynaecotyla squatarolae (Yamaguti, 1934) Yamaguti, 1939 (redescription)
Levinseniella Ward, 1901 (identification resource)
Levinseniella brachysoma (Creplin, 1837) Stiles & Hassall, 1902 (redescription)
Levinseniella bucephalae (Yamaguti, 1935) Yamaguti, 1939 (redescription)
Levinseniella carcinidis Rankin, 1939 accepted as Levinseniella propinqua Jägerskiöld, 1907 (redescription)
Levinseniella charadriformis Young, 1949 accepted as Ascorhytis charadriformis (Young, 1949) Ching, 1965 (redescription)
Levinseniella cruzi Travassos, 1921 (redescription)
Levinseniella howensis Johnston, 1917 (redescription)
Levinseniella indica Lal, 1936 (redescription)
Levinseniella macrophallos (von Linstow, 1875) Jägerskiöld, 1907 (redescription)
Levinseniella minuta Price, 1934 accepted as Atriophallophorus minutus (Price, 1934) Deblock & Rose, 1964 (redescription)
Levinseniella pellucida Jagerskiold, 1907 accepted as Levinseniella (Monarrhenos) pellucida Jagerskiold, 1907 (redescription)
Levinseniella propinqua Jägerskiöld, 1907 (redescription)
Maritrema Nicoll, 1907 (identification resource)
Maritrema acadiae (Swales, 1933) Gower, 1938 (redescription)
Maritrema afanassjewi Belopolskaja, 1952 (original description)
Maritrema arenaria Hadley & Castle, 1940 accepted as Maritrema gratiosum Nicoll, 1907 (redescription)
Maritrema eroliae Yamaguti, 1939 (redescription)
Maritrema gratiosum Nicoll, 1907 (redescription)
Maritrema humile Nicoll, 1907 accepted as Maritrema oocysta (Lebour, 1907) Rothschild, 1942 (redescription)
Maritrema lepidum Nicoll, 1907 accepted as Maritrema linguilla Jägerskiöld, 1908 (redescription)
Maritrema linguilla Jägerskiöld, 1908 (redescription)
Maritrema magnicirrus Belopolskaja, 1952 (original description)
Maritrema nicolli Travassos, 1921 (redescription)
Maritrema ovata Rankin, 1939 (redescription)
Maritrema pulcherrimum Travassos, 1929 (redescription)
Maritrema rhodanicum Carrère, 1936 accepted as Maritrema subdolum Jägerskiöld, 1909 (redescription)
Maritrema sachalinicum Schumakowitsch, 1932 (redescription)
Maritrema subdolum Jägerskiöld, 1909 (redescription)
Maritrematinae Nicoll, 1909 (identification resource)
Maritreminoides Rankin, 1939 accepted as Maritrema Nicoll, 1907 (identification resource)
Maritreminoides medius (Van Cleave & Mueller, 1932) Rankin, 1939 accepted as Quasimaritremopsis media (Van Cleave & Mueller, 1932) Deblock, 1973 (redescription)
Maritreminoides nettae (Gower, 1938) Rankin, 1939 accepted as Maritrema obstipum (Van Cleave & Mueller, 1932) Mueller, 1934 (redescription)
Maritreminoides obstipus (Van Cleave & Mueller, 1932) Rankin, 1939 accepted as Maritrema obstipum (Van Cleave & Mueller, 1932) Mueller, 1934 (redescription)
Microphallidae Ward, 1901 (identification resource)
Microphallinae Ward, 1901 (identification resource)
Microphalloides Yoshida, 1938 (identification resource)
Microphalloides japonicus (Osborn, 1919) Yoshida, 1938 (redescription)
Microphallus Ward, 1901 (identification resource)
Microphallus opacus (Ward, 1894) Ward, 1901 (redescription)
Numeniotrema Belopolskaja, 1952 (original description)
Numeniotrema musculosa Belopolskaja, 1952 (original description)
Phyllodistomum (Microlecithus) kajika Ozaki, 1926 accepted as Phyllodistomum kajika (Ozaki, 1926) Kaw, 1950 (redescription)
Pseudomaritrema Belopolskaja, 1952 (original description)
Pseudomaritrema posterolecithale Belopolskaja, 1952 (original description)
Pseudospelotrema Yamaguti, 1939 (identification resource)
Pseudospelotrema japonicum Yamaguti, 1939 (redescription)
Pseudospelotrema uriae Yamaguti, 1939 (redescription)
Rallus cayenensis (basis of record)
Spelotrema Jägerskiöld, 1901 accepted as Microphallus Ward, 1901 (identification resource)
Spelotrema brevicaeca (Africa & Garcia, 1935) Tubangui & Africa, 1938 accepted as Microphallus brevicaeca (Africa & Garcia, 1935) Baer, 1944 (redescription)
Spelotrema capellae Yamaguti, 1939 accepted as Microphallus capellae (Yamaguti, 1939) Baer, 1944 accepted as Microphallus pygmaeus (Levinsen, 1881) Baer, 1944 (redescription)
Spelotrema claviforme (Brandes, 1889) Nicoll, 1909 accepted as Microphallus claviformis (Brandes, 1889) Baer, 1944 (redescription)
Spelotrema excellens Nicoll, 1907 accepted as Microphallus excellens (Nicoll, 1907) Baer, 1944 accepted as Microphallus similis (Jägerskiöld, 1900) Baer, 1944 (redescription)
Spelotrema feriatum Nicoll, 1907 accepted as Spelotrema excellens Nicoll, 1907 accepted as Microphallus excellens (Nicoll, 1907) Baer, 1944 accepted as Microphallus similis (Jägerskiöld, 1900) Baer, 1944 (source of synonymy)
Spelotrema longicolle Yamaguti, 1939 accepted as Microphallus longicollis (Yamaguti, 1939) Baer, 1944 (redescription)
Spelotrema nicolli Cable & Hunninen, 1938 accepted as Microphallus nicolli (Cable & Hunninen, 1938) Baer, 1944 (redescription)
Spelotrema oedemia Belopolskaja, 1952 accepted as Microphallus oedemia (Belopolskaja, 1952) Biguet, Deblock & Capron, 1958 accepted as Microphallus pygmaeus (Levinsen, 1881) Baer, 1944 (original description)
Spelotrema papillorobusta Rankin, 1940 accepted as Microphallus papillorobustus (Rankin, 1940) Baer, 1944 (redescription)
Spelotrema pirum (Afanasyev, 1941) Belopolskaja, 1952 accepted as Microphallus enhydrae Rausch & Locker, 1951 (redescription)
Spelotrema pirum (Afanasyev, 1941) Belopolskaja, 1952 accepted as Microphallus enhydrae Rausch & Locker, 1951 (new combination reference)
Spelotrema prima (Jägerskiöld, 1908) Belopolskaja, 1952 accepted as Microphallus primas (Jägerskiöld, 1908) Stunkard, 1951 (new combination reference)
Spelotrema prima (Jägerskiöld, 1908) Belopolskaja, 1952 accepted as Microphallus primas (Jägerskiöld, 1908) Stunkard, 1951 (redescription)
Spelotrema pseudogonotyla Chen, 1944 accepted as Microphallus papillorobustus (Rankin, 1940) Baer, 1944 (redescription)
Spelotrema pygmaeum (Levinsen, 1881) Looss, 1902 accepted as Microphallus pygmaeus (Levinsen, 1881) Baer, 1944 (redescription)
Spelotrema simile (Jagerskiold, 1900) Looss, 1902 accepted as Microphallus similis (Jägerskiöld, 1900) Baer, 1944 (redescription)
Spiculotrema Belopolskaja, 1949 (identification resource)
Spiculotrema litoralis Belopolskaja, 1949 (redescription)

Culebra for Levinseniella minuta Price, 1934 
England for Spelotrema claviforme (Brandes, 1889) Nicoll, 1909 
England for Spelotrema excellens Nicoll, 1907 
England for Spelotrema pygmaeum (Levinsen, 1881) Looss, 1902 
English Coast for Maritrema gratiosum Nicoll, 1907 
English Coast for Maritrema humile Nicoll, 1907 
English Coast for Maritrema lepidum Nicoll, 1907 
France for Maritrema rhodanicum Carrère, 1936 
France for Spelotrema claviforme (Brandes, 1889) Nicoll, 1909 
Germany for Levinseniella brachysoma (Creplin, 1837) Stiles & Hassall, 1902 
Germany for Spelotrema claviforme (Brandes, 1889) Nicoll, 1909 
Germany for Spelotrema pygmaeum (Levinsen, 1881) Looss, 1902 
Hong Kong for Spelotrema pseudogonotyla Chen, 1944 
Japan for Levinseniella bucephalae (Yamaguti, 1935) Yamaguti, 1939 
Japan for Microphalloides japonicus (Osborn, 1919) Yoshida, 1938 
Japan for Phyllodistomum (Microlecithus) kajika Ozaki, 1926 
Japan for Pseudospelotrema japonicum Yamaguti, 1939 
Japanese Exclusive Economic Zone for Gynaecotyla squatarolae (Yamaguti, 1934) Yamaguti, 1939 
Japanese Exclusive Economic Zone for Maritrema eroliae Yamaguti, 1939 
Japanese Exclusive Economic Zone for Pseudospelotrema uriae Yamaguti, 1939 
Japanese Exclusive Economic Zone for Spelotrema capellae Yamaguti, 1939 
Japanese Exclusive Economic Zone for Spelotrema longicolle Yamaguti, 1939 
Japanese Exclusive Economic Zone for Spelotrema prima (Jägerskiöld, 1908) Belopolskaja, 1952 
North America for Spelotrema pygmaeum (Levinsen, 1881) Looss, 1902 
Philippines Exclusive Economic Zone for Spelotrema brevicaeca (Africa & Garcia, 1935) Tubangui & Africa, 1938 
Rio De Janeiro for Gynaecotyla jaegerskioeldi (Travassos, 1921) Yamaguti, 1939 
Rio de Janeiro for Gynaecotyla simillima (Travassos, 1921) Yamaguti, 1939 
Rio De Janeiro for Levinseniella cruzi Travassos, 1921 
Rio De Janeiro for Maritrema nicolli Travassos, 1921 
Rio De Janeiro for Maritrema pulcherrimum Travassos, 1929 
Soviet Union for Diacetabulum Belopolskaja, 1952 
Soviet Union for Diacetabulum curvicolon Belopolskaja, 1952 
Soviet Union for Endocotyle incana Belopolskaja, 1952 
Soviet Union for Levinseniella brachysoma (Creplin, 1837) Stiles & Hassall, 1902 
Soviet Union for Levinseniella bucephalae (Yamaguti, 1935) Yamaguti, 1939 
Soviet Union for Levinseniella propinqua Jägerskiöld, 1907 
Soviet Union for Maritrema afanassjewi Belopolskaja, 1952 
Soviet Union for Maritrema gratiosum Nicoll, 1907 
Soviet Union for Maritrema linguilla Jägerskiöld, 1908 
Soviet Union for Maritrema magnicirrus Belopolskaja, 1952 
Soviet Union for Maritrema subdolum Jägerskiöld, 1909 
Soviet Union for Numeniotrema musculosa Belopolskaja, 1952 
Soviet Union for Pseudomaritrema posterolecithale Belopolskaja, 1952 
Soviet Union for Pseudospelotrema japonicum Yamaguti, 1939 
Soviet Union for Spelotrema claviforme (Brandes, 1889) Nicoll, 1909 
Soviet Union for Spelotrema excellens Nicoll, 1907 
Soviet Union for Spelotrema oedemia Belopolskaja, 1952 
Soviet Union for Spelotrema pirum (Afanasyev, 1941) Belopolskaja, 1952 
Soviet Union for Spelotrema pygmaeum (Levinsen, 1881) Looss, 1902 
Sweden for Levinseniella pellucida Jagerskiold, 1907 
Sweden for Levinseniella propinqua Jägerskiöld, 1907 
Sweden for Maritrema linguilla Jägerskiöld, 1908 
Sweden for Maritrema subdolum Jägerskiöld, 1909 
Sweden for Spelotrema claviforme (Brandes, 1889) Nicoll, 1909 
Sweden for Spelotrema excellens Nicoll, 1907 
Sweden for Spelotrema pygmaeum (Levinsen, 1881) Looss, 1902 
Sweden for Spelotrema simile (Jagerskiold, 1900) Looss, 1902 
Swedish Exclusive Economic Zone for Spelotrema prima (Jägerskiöld, 1908) Belopolskaja, 1952 
USA for Maritreminoides medius (Van Cleave & Mueller, 1932) Rankin, 1939 
USA for Maritreminoides nettae (Gower, 1938) Rankin, 1939 
USA for Maritreminoides obstipus (Van Cleave & Mueller, 1932) Rankin, 1939 
USA for Microphallus opacus (Ward, 1894) Ward, 1901