Acanthostomum imbutiforme (Molin, 1859) Gohar, 1934 accepted as Timoniella imbutiforme (Molin, 1859) Brooks, 1980 accepted as Timoniella imbutiformis (Molin, 1859) Brooks, 1980 (redescription)
Accacladium Odhner, 1928 (taxonomy source)
Accacladocoelium alveolatum Robinson, 1934 (redescription)
Accacladocoelium macrocotyle (Diesing, 1858) Robinson, 1934 (additional source)
Accacladocoelium nigroflavum (Rudolphi, 1819) Robinson, 1934 (additional source)
Accacladocoelium petasiporum Odhner, 1928 (redescription)
Accacoeliidae Odhner, 1911 (taxonomy source)
Accacoelium Monticelli, 1893 (taxonomy source)
Allocreadium isoporum (Looss, 1894) Looss, 1902 (redescription)
Ancylocoelium typicum Nicoll, 1912 (redescription)
Aphanurus stossichii (Monticelli, 1891) Looss, 1907 (redescription)
Aponurus Looss, 1907 (additional source)
Aporocotyle simplex Odhner, 1900 (redescription)
Asymphylodora demeli Markowski, 1935 (redescription)
Asymphylodora tincae (Modeer, 1790) Lühe, 1909 (redescription)
Azygia lucii (Müller, 1776) Lühe, 1909 (redescription)
Bacciger bacciger (Rudolphi, 1819) Nicoll, 1914 (redescription)
Brachyphallus crenatus (Rudolphi, 1802) Odhner, 1905 (redescription)
Bucephalopsis gracilescens (Rudolphi, 1819) Nicoll, 1914 accepted as Prosorhynchoides gracilescens (Rudolphi, 1819) Stunkard, 1976 (redescription)
Bucephalus polymorphus von Baer, 1827 (redescription)
Bunodera luciopercae (Müller, 1776) Lühe, 1909 (redescription)
Cainocreadium labracis (Dujardin, 1845) Nicoll, 1909 (redescription)
Crepidostomatinae Dawes, 1947 accepted as Allocreadiidae Looss, 1902 (original description)
Crepidostomum farionis (Müller, 1780) Lühe, 1909 (redescription)
Derogenes varicus (Müller, 1784) Looss, 1901 (redescription)
Derogenoides ovacutus Nicoll, 1913 (redescription)
Deropristis hispida (Abildgaard in Rudolphi, 1819) Odhner, 1902 (redescription)
Deropristis inflata (Molin, 1859) Odhner, 1902 (redescription)
Dicrogaster Looss, 1902 (additional source)
Didymocystis Ariola, 1902 (additional source)
Didymozoon faciale Baylis, 1938 accepted as Didymodiclinus facialis (Baylis, 1938) Pozdnyakov, 1996 (redescription)
Didymozoon scombri Taschenberg, 1879 accepted as Nematobothrium scombri (Taschenberg, 1879) Ishii, 1935 (redescription)
Dihemistephanus lydiae (Stossich, 1896) Looss, 1901 (redescription)
Dihemistephanus sturionis Little, 1930 accepted as Pristicola sturionis (Little, 1930) Cable, 1952 (redescription)
Dinurus tornatus (Rudolphi, 1819) Looss, 1907 (redescription)
Diphterostomum betencourti (Monticelli, 1893) Odhner, 1911 (additional source)
Diphterostomum brusinae (Stossich, 1888) Stossich, 1904 (redescription)
Distoma miescheri Zschokke, 1890 accepted as Lampritrema miescheri (Zschokke, 1890) Margolis, 1962 (redescription)
Ectenurus lepidus Looss, 1907 (redescription)
Fellodistomum fellis (Olsson, 1868) Nicoll, 1909 (redescription)
Haplocladus filiformis (Rudolphi, 1819) Odhner, 1911 accepted as Monascus filiformis (Rudolphi, 1819) Looss, 1907 (additional source)
Haplocladus minor Odhner, 1911 accepted as Monascus filiformis (Rudolphi, 1819) Looss, 1907 (additional source)
Haplocladus typicus Odhner, 1911 accepted as Monascus filiformis (Rudolphi, 1819) Looss, 1907 (additional source)
Haploporidae Nicoll, 1914 (taxonomy source)
Haploporus benedenii (Stossich, 1887) Looss, 1902 (redescription)
Haplosplanchnus pachysoma (Eysenhardt, 1829) Looss, 1902 (redescription)
Helicometra fasciata (Rudolphi, 1819) Odhner, 1902 (redescription)
Helicometra pulchella (Rudolphi, 1819) Odhner, 1902 (redescription)
Hemipera ovocaudata Nicoll, 1913 (redescription)
Hemipera sharpei Jones, 1933 (redescription)
Hemiurus appendiculatus (Rudolphi, 1802) Looss, 1899 (redescription)
Hemiurus communis Odhner, 1905 (redescription)
Hemiurus levinseni Odhner, 1905 (redescription)
Hemiurus ocreatus (Rudolphi, 1802) Odhner, 1911 accepted as Hemiurus luehei Odhner, 1905 (redescription)
Hemiurus rugosus Looss, 1907 accepted as Hemiurus luehei Odhner, 1905 (redescription)
Koellikeria filicollis (Rudolphi, 1819) Cobbold, 1860 (additional source)
Lecithaster confusus Odhner, 1905 (redescription)
Lecithaster gibbosus (Rudolphi, 1802) Lühe, 1901 (redescription)
Lecithobotrys Looss, 1902 (additional source)
Lecithochirium furcolabiatum (Jones, 1933) Dawes, 1947 (redescription)
Lecithochirium furcolabiatum (Jones, 1933) Dawes, 1947 (new combination reference)
Lecithochirium gravidum Looss, 1907 accepted as Lecithochirium rufoviride (Rudolphi, 1819) Lühe, 1901 (redescription)
Lecithochirium rufoviride (Rudolphi, 1819) Lühe, 1901 (redescription)
Lecithocladium excisum (Rudolphi, 1819) Lühe, 1901 (redescription)
Lecithophyllum botryophoron (Olsson, 1868) Odhner, 1905 (redescription)
Lecithostaphylinae Odhner, 1911 (additional source)
Lepidapedon elongatum (Lebour, 1908) Nicoll, 1910 (redescription)
Lepidapedon rachion (Cobbold, 1858) Stafford, 1904 (redescription)
Lepidauchen stenostoma Nicoll, 1913 (redescription)
Mesometra Lühe, 1901 (additional source)
Mneiodhneria Dollfus, 1935 accepted as Odhnerium Yamaguti, 1934 (additional source)
Monorcheides Odhner, 1905 (additional source)
Monorchis monorchis (Stossich, 1890) Looss, 1902 (redescription)
Nematobothrium molae Maclaren, 1904 (redescription)
Neophasis lageniformis (Lebour, 1910) Miller, 1941 accepted as Neophasis anarrhichae (Nicoll, 1909) Bray, 1987 (redescription)
Opechona bacillaris (Molin, 1859) Dollfus, 1927 (redescription)
Opechona retractilis (Lebour, 1908) Yamaguti, 1954 accepted as Opechona bacillaris (Molin, 1859) Dollfus, 1927 (redescription)
Orophocotyle Looss, 1902 (taxonomy source)
Orophocotyle divergens Looss, 1902 (redescription)
Orophocotyle planci (Stossich, 1899) Looss, 1902 (redescription)
Otodistomum veliporum (Creplin, 1837) Stafford, 1904 (redescription)
Ovotrema Pigulewsky, 1938 accepted as Bacciger Nicoll, 1914 (additional source)
Peracreadium commune (Olsson, 1868) Nicoll, 1909 (redescription)
Peracreadium genu (Rudolphi, 1819) Nicoll, 1909 (redescription)
Phyllodistomum folium (Olfers, 1816) Braun, 1899 (redescription)
Plagioporus alacris (Looss, 1901) Price, 1934 accepted as Macvicaria alacris (Looss, 1901) Gibson & Bray, 1982 (redescription)
Plagioporus idoneus (Nicoll, 1909) Price, 1934 accepted as Peracreadium idoneum (Nicoll, 1909) Gibson & Bray, 1982 (redescription)
Plagioporus varius (Nicoll, 1910) Price, 1934 accepted as Macvicaria soleae (Dujardin, 1845) Gibson & Bray, 1982 (redescription)
Podocotyle atherinae Nicoll, 1914 (redescription)
Podocotyle atomon (Rudolphi, 1802) Odhner, 1905 (redescription)
Podocotyle syngnathi Nicoll, 1913 (redescription)
Probolitrema Looss, 1902 (additional source)
Proctoeces maculatus (Looss, 1901) Odhner, 1911 (redescription)
Proctotrema bacilliovatum Odhner, 1911 (redescription)
Prosorhynchus crucibulum (Rudolphi, 1819) Odhner, 1905 (redescription)
Ptychogonimus megastoma (Rudolphi, 1819) Lühe, 1900 accepted as Ptychogonimus megastomum (Rudolphi, 1819) Lühe, 1900 (redescription)
Rhipidocotyle galeata (Rudolphi, 1819) Eckmann, 1932 (redescription)
Rhodotrema ovacutum (Lebour, 1908) Odhner, 1911 accepted as Stenakron ovacutus (Lebour, 1908) Strelkov, 1960 accepted as Steringotrema ovacutum (Lebour, 1908) Yamaguti, 1954 (redescription)
Rhynchopharynx Odhner, 1928 (toxicology source)
Saccocoelium obesum Looss, 1902 (redescription)

Bristol Channel for Dihemistephanus sturionis Little, 1930 
Britain for Bunodera luciopercae (Müller, 1776) Lühe, 1909 
England for Asymphylodora tincae (Modeer, 1790) Lühe, 1909 
England for Azygia lucii (Müller, 1776) Lühe, 1909 
England for Phyllodistomum folium (Olfers, 1816) Braun, 1899 
Irish Sea for Koellikeria filicollis (Rudolphi, 1819) Cobbold, 1860 
United Kingdom for Allocreadium isoporum (Looss, 1894) Looss, 1902 
United Kingdom for Bucephalus polymorphus von Baer, 1827 
United Kingdom for Crepidostomum farionis (Müller, 1780) Lühe, 1909 
United Kingdom for Distoma miescheri Zschokke, 1890 
United Kingdom for Sphaerostoma bramae (Müller, 1776) Lühe, 1909 
United Kingdom Exclusive Economic Zone for Acanthostomum imbutiforme (Molin, 1859) Gohar, 1934 
United Kingdom Exclusive Economic Zone for Accacladocoelium alveolatum Robinson, 1934 
United Kingdom Exclusive Economic Zone for Ancylocoelium typicum Nicoll, 1912 
United Kingdom Exclusive Economic Zone for Bacciger bacciger (Rudolphi, 1819) Nicoll, 1914 
United Kingdom Exclusive Economic Zone for Brachyphallus crenatus (Rudolphi, 1802) Odhner, 1905 
United Kingdom Exclusive Economic Zone for Bucephalopsis gracilescens (Rudolphi, 1819) Nicoll, 1914 
United Kingdom Exclusive Economic Zone for Cainocreadium labracis (Dujardin, 1845) Nicoll, 1909 
United Kingdom Exclusive Economic Zone for Derogenes varicus (Müller, 1784) Looss, 1901 
United Kingdom Exclusive Economic Zone for Derogenoides ovacutus Nicoll, 1913 
United Kingdom Exclusive Economic Zone for Didymozoon faciale Baylis, 1938 
United Kingdom Exclusive Economic Zone for Didymozoon scombri Taschenberg, 1879 
United Kingdom Exclusive Economic Zone for Dihemistephanus lydiae (Stossich, 1896) Looss, 1901 
United Kingdom Exclusive Economic Zone for Ectenurus lepidus Looss, 1907 
United Kingdom Exclusive Economic Zone for Fellodistomum fellis (Olsson, 1868) Nicoll, 1909 
United Kingdom Exclusive Economic Zone for Haploporus benedenii (Stossich, 1887) Looss, 1902 
United Kingdom Exclusive Economic Zone for Helicometra fasciata (Rudolphi, 1819) Odhner, 1902 
United Kingdom Exclusive Economic Zone for Helicometra pulchella (Rudolphi, 1819) Odhner, 1902 
United Kingdom Exclusive Economic Zone for Hemipera ovocaudata Nicoll, 1913 
United Kingdom Exclusive Economic Zone for Hemipera sharpei Jones, 1933 
United Kingdom Exclusive Economic Zone for Hemiurus communis Odhner, 1905 
United Kingdom Exclusive Economic Zone for Hemiurus ocreatus (Rudolphi, 1802) Odhner, 1911 
United Kingdom Exclusive Economic Zone for Lecithaster gibbosus (Rudolphi, 1802) Lühe, 1901 
United Kingdom Exclusive Economic Zone for Lecithochirium furcolabiatum (Jones, 1933) Dawes, 1947 
United Kingdom Exclusive Economic Zone for Lecithochirium gravidum Looss, 1907 
United Kingdom Exclusive Economic Zone for Lecithochirium rufoviride (Rudolphi, 1819) Lühe, 1901 
United Kingdom Exclusive Economic Zone for Lecithocladium excisum (Rudolphi, 1819) Lühe, 1901 
United Kingdom Exclusive Economic Zone for Lecithophyllum botryophoron (Olsson, 1868) Odhner, 1905 
United Kingdom Exclusive Economic Zone for Lepidapedon elongatum (Lebour, 1908) Nicoll, 1910 
United Kingdom Exclusive Economic Zone for Lepidapedon rachion (Cobbold, 1858) Stafford, 1904 
United Kingdom Exclusive Economic Zone for Lepidauchen stenostoma Nicoll, 1913 
United Kingdom Exclusive Economic Zone for Monorchis monorchis (Stossich, 1890) Looss, 1902 
United Kingdom Exclusive Economic Zone for Neophasis lageniformis (Lebour, 1910) Miller, 1941 
United Kingdom Exclusive Economic Zone for Opechona bacillaris (Molin, 1859) Dollfus, 1927 
United Kingdom Exclusive Economic Zone for Opechona retractilis (Lebour, 1908) Yamaguti, 1954 
United Kingdom Exclusive Economic Zone for Otodistomum veliporum (Creplin, 1837) Stafford, 1904 
United Kingdom Exclusive Economic Zone for Peracreadium commune (Olsson, 1868) Nicoll, 1909 
United Kingdom Exclusive Economic Zone for Peracreadium genu (Rudolphi, 1819) Nicoll, 1909 
United Kingdom Exclusive Economic Zone for Plagioporus alacris (Looss, 1901) Price, 1934 
United Kingdom Exclusive Economic Zone for Plagioporus idoneus (Nicoll, 1909) Price, 1934 
United Kingdom Exclusive Economic Zone for Plagioporus varius (Nicoll, 1910) Price, 1934 
United Kingdom Exclusive Economic Zone for Podocotyle atherinae Nicoll, 1914 
United Kingdom Exclusive Economic Zone for Podocotyle atomon (Rudolphi, 1802) Odhner, 1905 
United Kingdom Exclusive Economic Zone for Podocotyle syngnathi Nicoll, 1913 
United Kingdom Exclusive Economic Zone for Prosorhynchus crucibulum (Rudolphi, 1819) Odhner, 1905 
United Kingdom Exclusive Economic Zone for Rhodotrema ovacutum (Lebour, 1908) Odhner, 1911 
United Kingdom Exclusive Economic Zone for Saccocoelium obesum Looss, 1902 
United Kingdom Exclusive Economic Zone for Stephanostomum baccatum (Nicoll, 1907) Manter, 1934 
United Kingdom Exclusive Economic Zone for Stephanostomum caducum (Looss, 1901) Manter, 1934 
United Kingdom Exclusive Economic Zone for Stephanostomum cesticillus (Molin, 1858) Looss, 1899 
United Kingdom Exclusive Economic Zone for Stephanostomum pristis (Deslongchamps, 1824) Looss, 1899 
United Kingdom Exclusive Economic Zone for Stephanostomum triglae (Lebour, 1908) Dawes, 1946 
United Kingdom Exclusive Economic Zone for Steringophorus furciger (Olsson, 1868) Odhner, 1905 
United Kingdom Exclusive Economic Zone for Steringotrema cluthense (Nicoll, 1909) Odhner, 1911 
United Kingdom Exclusive Economic Zone for Steringotrema divergens (Rudolphi, 1809) Odhner, 1911 
United Kingdom Exclusive Economic Zone for Steringotrema pagelli (van Beneden, 1871) Odhner, 1911 
United Kingdom Exclusive Economic Zone for Sterrhurus fusiformis (Lühe, 1901) Looss, 1907 
United Kingdom Exclusive Economic Zone for Synaptobothrium caudiporum (Rudolphi, 1819) Looss, 1907 
United Kingdom Exclusive Economic Zone for Tergestia laticollis (Rudolphi, 1819) Stossich, 1899 
United Kingdom Exclusive Economic Zone for Zoogonoides viviparus (Olsson, 1868) Odhner, 1902 
United Kingdom Exclusive Economic Zone for Zoogonus rubellus (Olsson, 1868) Odhner, 1902 
United Kingdom Exclusive Economic Zone for Zoonogenus vividus Nicoll, 1912 

 Spelling

 for Haplosplanchnus pachysomus (Eysenhardt, 1829) Looss, 1902

Soma is a noun, so Looss (1902) made an error in making it agree in gender with the generic name. The spelling H. ... [details]