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Longshaw, M., C. Williams, A. Reading & A.P. Shinn. (2026). A checklist of parasites of freshwater fish of the British Isles-Kennedy revisited, reviewed and reassessed. Zootaxa. 5825(1):1-198. Jun 2026.
564173
10.11646/zootaxa.5825.1.1 [view]
Longshaw, M., C. Williams, A. Reading & A.P. Shinn
2026
A checklist of parasites of freshwater fish of the British Isles-Kennedy revisited, reviewed and reassessed.
Zootaxa
5825(1):1-198. Jun 2026
Publication
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2026-06-21 23:22:14Z
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Walter, T. Chad

 Apatemon gracilis (Rudolphi, 1819) Szidat, 1928
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Barbatula barbatula (Linnaeus, 1758)
  4. [Details]


 Apatemon gracilis (Rudolphi, 1819) Szidat, 1928
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Cottus gobio Linnaeus, 1758
  4. [Details]


 Apatemon gracilis (Rudolphi, 1819) Szidat, 1928
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gasterosteus aculeatus Linnaeus, 1758
  4. [Details]


 Apatemon gracilis (Rudolphi, 1819) Szidat, 1928
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Oncorhynchus mykiss (Walbaum, 1792)
  4. [Details]


 Apatemon gracilis (Rudolphi, 1819) Szidat, 1928
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Perca fluviatilis Linnaeus, 1758
  4. [Details]


 Apatemon gracilis (Rudolphi, 1819) Szidat, 1928
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Pungitius pungitius (Linnaeus, 1758)
  4. [Details]


 Apatemon gracilis (Rudolphi, 1819) Szidat, 1928
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Salmo salar Linnaeus, 1758
  4. [Details]


 Apatemon gracilis (Rudolphi, 1819) Szidat, 1928
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Salmo trutta Linnaeus, 1758
  4. [Details]


 Apatemon gracilis (Rudolphi, 1819) Szidat, 1928
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Salvelinus alpinus (Linnaeus, 1758)
  4. [Details]


 Bothriocestus claviceps (Goeze, 1782) Scholz, Choudhury & Reyda, 2023
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Esox lucius Linnaeus, 1758
  4. [Details]


 Bothriocestus claviceps (Goeze, 1782) Scholz, Choudhury & Reyda, 2023
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gasterosteus aculeatus Linnaeus, 1758
  4. [Details]


 Bothriocestus claviceps (Goeze, 1782) Scholz, Choudhury & Reyda, 2023
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Anguilla anguilla (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Abramis brama (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Alburnus alburnus (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Blicca bjoerkna (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gobio gobio (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Leuciscus leuciscus (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Lota lota (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Rhodeus amarus (Bloch, 1782)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Rutilus rutilus (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Scardinius erythrophthalmus (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Squalius cephalus (Linnaeus, 1758)
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Esox (Esox) lucius Linnaeus, 1758 represented as Esox lucius Linnaeus, 1758
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Perca fluviatilis Linnaeus, 1758
  4. [Details]


 Bucephalus polymorphus von Baer, 1827
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Salmo trutta Linnaeus, 1758
  4. [Details]


 Bunodera luciopercae (Müller, 1776) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Barbus barbus (Linnaeus, 1758)
  4. [Details]


 Bunodera luciopercae (Müller, 1776) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Esox lucius Linnaeus, 1758
  4. [Details]


 Bunodera luciopercae (Müller, 1776) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Gymnocephalus cernua (Linnaeus, 1758)
  4. [Details]


 Bunodera luciopercae (Müller, 1776) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Oncorhynchus mykiss (Walbaum, 1792)
  4. [Details]


 Bunodera luciopercae (Müller, 1776) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Perca fluviatilis Linnaeus, 1758
  4. [Details]


 Bunodera luciopercae (Müller, 1776) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Pungitius pungitius (Linnaeus, 1758)
  4. [Details]


 Bunodera luciopercae (Müller, 1776) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Salmo trutta Linnaeus, 1758
  4. [Details]


 Crepidostomum farionis (Müller, 1780) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Anguilla anguilla (Linnaeus, 1758)
  4. [Details]


 Crepidostomum farionis (Müller, 1780) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Oncorhynchus mykiss (Walbaum, 1792)
  4. [Details]


 Crepidostomum farionis (Müller, 1780) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Salmo salar Linnaeus, 1758
  4. [Details]


 Crepidostomum farionis (Müller, 1780) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Salmo trutta Linnaeus, 1758
  4. [Details]


 Crepidostomum farionis (Müller, 1780) Lühe, 1909
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Salvelinus alpinus (Linnaeus, 1758)
  4. [Details]


 Crepidostomum metoecus (Braun, 1900) Braun, 1900
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Anguilla anguilla (Linnaeus, 1758)
  4. [Details]


 Crepidostomum metoecus (Braun, 1900) Braun, 1900
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Esox lucius Linnaeus, 1758
  4. [Details]


 Crepidostomum metoecus (Braun, 1900) Braun, 1900
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Oncorhynchus mykiss (Walbaum, 1792)
  4. [Details]


 Crepidostomum metoecus (Braun, 1900) Braun, 1900
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Salmo salar Linnaeus, 1758
  4. [Details]


 Crepidostomum metoecus (Braun, 1900) Braun, 1900
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Salmo trutta Linnaeus, 1758
  4. [Details]


 Crepidostomum metoecus (Braun, 1900) Braun, 1900
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Thymallus thymallus (Linnaeus, 1758)
  4. [Details]


 Dactylogyrus anchoratus (Dujardin, 1845) Wagener, 1857
  1. Ecological interactions ectoparasitic
  2. Life stage adult
  3. Host Carassius carassius (Linnaeus, 1758)
  4. [Details]


 Dactylogyrus anchoratus (Dujardin, 1845) Wagener, 1857
  1. Ecological interactions ectoparasitic
  2. Life stage adult
  3. Host Cyprinus carpio Linnaeus, 1758
  4. [Details]


 Dactylogyrus auriculatus (von Nordmann, 1832) Diesing, 1850
  1. Ecological interactions ectoparasitic
  2. Life stage adult
  3. Host Abramis brama (Linnaeus, 1758)
  4. [Details]


 Dactylogyrus crucifer Wagener, 1857
  1. Ecological interactions ectoparasitic
  2. Life stage adult
  3. Host Abramis brama (Linnaeus, 1758)
  4. [Details]


 Dactylogyrus crucifer Wagener, 1857
  1. Ecological interactions ectoparasitic
  2. Life stage adult
  3. Host Rutilus rutilus (Linnaeus, 1758)
  4. [Details]


 Dactylogyrus extensus Mueller & Van Cleave, 1932
  1. Ecological interactions ectoparasitic
  2. Life stage adult
  3. Host Cyprinus carpio Linnaeus, 1758
  4. [Details]


 Dactylogyrus similis Wagener, 1909
  1. Ecological interactions ectoparasitic
  2. Life stage adult
  3. Host Rutilus rutilus (Linnaeus, 1758)
  4. [Details]


 Dactylogyrus sphyrna Linstow, 1878
  1. Ecological interactions ectoparasitic
  2. Life stage adult
  3. Host Rutilus rutilus (Linnaeus, 1758)
  4. [Details]


 Dactylogyrus wunderi Bychowsky, 1931
  1. Ecological interactions ectoparasitic
  2. Life stage adult
  3. Host Abramis brama (Linnaeus, 1758)
  4. [Details]


 Deropristis inflata (Molin, 1859) Odhner, 1902
  1. Ecological interactions endoparasitic
  2. Life stage adult
  3. Host Anguilla anguilla (Linnaeus, 1758)
  4. [Details]


 Diplostomum baeri Dubois, 1937
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gasterosteus aculeatus Linnaeus, 1758
  4. [Details]


 Diplostomum baeri Dubois, 1937
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Oncorhynchus mykiss (Walbaum, 1792)
  4. [Details]


 Diplostomum baeri Dubois, 1937
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Salvelinus alpinus (Linnaeus, 1758)
  4. [Details]


 Diplostomum chromatophorum (Brown, 1931) Shigin, 1986
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Abramis brama (Linnaeus, 1758)
  4. [Details]


 Diplostomum chromatophorum (Brown, 1931) Shigin, 1986
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Anguilla anguilla (Linnaeus, 1758)
  4. [Details]


 Diplostomum chromatophorum (Brown, 1931) Shigin, 1986
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Esox lucius Linnaeus, 1758
  4. [Details]


 Diplostomum chromatophorum (Brown, 1931) Shigin, 1986
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Perca fluviatilis Linnaeus, 1758
  4. [Details]


 Diplostomum chromatophorum (Brown, 1931) Shigin, 1986
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Rutilus rutilus (Linnaeus, 1758)
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Alosa fallax (Lacepède, 1803)
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions ectoparasitic
  2. Life stage larva
  3. Host Anguilla anguilla (Linnaeus, 1758)
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Coregonus pennantii Valenciennes, 1848
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Cottus gobio Linnaeus, 1758
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gasterosteus aculeatus Linnaeus, 1758
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gymnocephalus cernua (Linnaeus, 1758)
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Oncorhynchus mykiss (Walbaum, 1792)
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Perca fluviatilis Linnaeus, 1758
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Pungitius pungitius (Linnaeus, 1758)
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Rutilus rutilus (Linnaeus, 1758)
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Salmo salar Linnaeus, 1758
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Salmo trutta Linnaeus, 1758
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Salvelinus alpinus (Linnaeus, 1758)
  4. [Details]


 Diplostomum gasterostei Williams, 1966
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Scardinius erythrophthalmus (Linnaeus, 1758)
  4. [Details]


 Diplostomum helveticum (Dubois, 1929) Shigin, 1977
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Abramis brama (Linnaeus, 1758)
  4. [Details]


 Diplostomum helveticum (Dubois, 1929) Shigin, 1977
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Perca fluviatilis Linnaeus, 1758
  4. [Details]


 Diplostomum huronense (La Rue, 1927) Hughes, 1929
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Abramis brama (Linnaeus, 1758)
  4. [Details]


 Diplostomum huronense (La Rue, 1927) Hughes, 1929
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Anguilla anguilla (Linnaeus, 1758)
  4. [Details]


 Diplostomum huronense (La Rue, 1927) Hughes, 1929
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Esox lucius Linnaeus, 1758
  4. [Details]


 Diplostomum huronense (La Rue, 1927) Hughes, 1929
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Oncorhynchus mykiss (Walbaum, 1792)
  4. [Details]


 Diplostomum huronense (La Rue, 1927) Hughes, 1929
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Perca fluviatilis Linnaeus, 1758
  4. [Details]


 Diplostomum huronense (La Rue, 1927) Hughes, 1929
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Rutilus rutilus (Linnaeus, 1758)
  4. [Details]


 Diplostomum nordmanni Shigin & Shapirov in Shigin, 1986
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Perca fluviatilis Linnaeus, 1758
  4. [Details]


 Diplostomum nordmanni Shigin & Shapirov in Shigin, 1986
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Rutilus rutilus (Linnaeus, 1758)
  4. [Details]


 Diplostomum paracaudum (Iles, 1959) Shigin, 1977
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gasterosteus aculeatus Linnaeus, 1758
  4. [Details]


 Diplostomum paracaudum (Iles, 1959) Shigin, 1977
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Oncorhynchus mykiss (Walbaum, 1792)
  4. [Details]


 Diplostomum paracaudum (Iles, 1959) Shigin, 1977
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Salmo salar Linnaeus, 1758
  4. [Details]


 Diplostomum petromyzifluviatilis Diesing, 1850
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Lampetra fluviatilis (Linnaeus, 1758)
  4. [Details]


 Diplostomum petromyzifluviatilis Diesing, 1850
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Lampetra planeri (Bloch, 1784)
  4. [Details]


 Diplostomum phoxini (Faust, 1919) Arvy & Buttner, 1954
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gasterosteus aculeatus Linnaeus, 1758
  4. [Details]


 Diplostomum phoxini (Faust, 1919) Arvy & Buttner, 1954
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Phoxinus phoxinus (Linnaeus, 1758)
  4. [Details]


 Diplostomum spathaceum (Rudolphi, 1819) Olsson, 1876
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Alosa fallax (Lacepède, 1803)
  4. [Details]


 Diplostomum spathaceum (Rudolphi, 1819) Olsson, 1876
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Leucaspius delineatus (Heckel, 1843)
  4. [Details]


 Diplostomum volvens von Nordmann, 1832
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Coregonus pennantii Valenciennes, 1848
  4. [Details]


 Diplostomum volvens von Nordmann, 1832
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Cottus gobio Linnaeus, 1758
  4. [Details]


 Diplostomum volvens von Nordmann, 1832
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gasterosteus aculeatus Linnaeus, 1758
  4. [Details]


 Diplostomum volvens von Nordmann, 1832
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Gymnocephalus cernua (Linnaeus, 1758)
  4. [Details]


 Diplostomum volvens von Nordmann, 1832
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Lota lota (Linnaeus, 1758)
  4. [Details]


 Diplostomum volvens von Nordmann, 1832
  1. Ecological interactions endoparasitic
  2. Life stage larva
  3. Host Oncorhynchus mykiss (Walbaum, 1792)
  4. [Details]