(of)Malm, A. W. (1863). Svenska Iglar, Disciferae, afbildade efter lefvande examplar och beskrifna [Swedish Leeches, Disciferae, illustrated after living specimens and described]. <em>Göteborgs Kungliga Vetenskaps-och Vitterhets-samhället Handlingar.</em> 8: 151-259 + index + plates 3-5., available online athttps://books.google.com/books?id=4fyovoG7AmcC&source=gbs_navlinks_s[details]
The UK Marine Environmental Data and Information Network (2024). Marine Species of the British Isles and Adjacent Seas (MSBIAS): a checklist of species derived from the UNICORN and Marine Recorder applications. Heptacyclus scorpii (Malm, 1863). Accessed at: https://marinespecies.org/msbias/aphia.php?p=taxdetails&id=410299 on 2024-05-05
original description(of)Malm, A. W. (1863). Svenska Iglar, Disciferae, afbildade efter lefvande examplar och beskrifna [Swedish Leeches, Disciferae, illustrated after living specimens and described]. <em>Göteborgs Kungliga Vetenskaps-och Vitterhets-samhället Handlingar.</em> 8: 151-259 + index + plates 3-5., available online athttps://books.google.com/books?id=4fyovoG7AmcC&source=gbs_navlinks_s[details]
Present Inaccurate Introduced: alien Containing type locality