basis of recordKennedy, C. R. (1974). A checklist of British and Irish freshwater fish parasites with notes on their distribution. <em>Journal of Fish Biology.</em> 6(5): 613-644., available online athttps://doi.org/10.1111/j.1095-8649.1974.tb05104.x[details]
additional sourceSandars, D. F. (1957). A Note on the Description of <i>Dibothriocephalus medius</i> Fahmy, 1954. <em>Journal of Helminthology.</em> 31(3): 171-172., available online athttps://doi.org/10.1017/s0022149x00004405[details]
redescriptionFraser, P. G. (1960). On <i>Diphyllobothrium medium</i> (Fahmy, 1954) Parasitic in Trout in Great Britain. <em>Journal of Helminthology.</em> 34(3-4): 193-204., available online athttps://doi.org/10.1017/s0022149x0002112x[details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality