MSBIAS (2024). Helobdella Blanchard, 1896. Accessed at: https://marinespecies.org/msbias/aphia.php?p=taxdetails&id=160018 on 2024-05-04
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. Helobdella Blanchard, 1896. Accessed at: https://marinespecies.org/msbias/aphia.php?p=taxdetails&id=160018 on 2024-05-04
additional sourceNeave, Sheffield Airey. (1939-1996). Nomenclator Zoologicus vol. 1-10 Online. <em>[Online Nomenclator Zoologicus at Checklistbank. Ubio link has gone].</em> , available online athttps://www.checklistbank.org/dataset/126539/about[details]
additional sourceBlanchard, Raphael. (1896). Viaggio del dott. A. Borelli nella Republica Argentina e nel Paraguay XXI, Hirudinées. <em>Bollettino dei musei di zoologia ed anatomia comparata della R. Università di Torino.</em> no. 263: 1-24., available online athttps://biodiversitylibrary.org/page/11666066 page(s): 4; note: for Hirudo stagnalis Linnaeus, 1758 [details]
Present Inaccurate Introduced: alien Containing type locality
Present 
