Froese, R. and D. Pauly. Editors. (2021). FishBase. Hymenocephalus gracilis Gilbert & Hubbs, 1920. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: https://www.marbef.org/data/aphia.php?p=taxdetails&id=272373 on 2024-03-29
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Hymenocephalus gracilis Gilbert & Hubbs, 1920. Accessed at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=272373 on 2024-03-29
context source (Deepsea)Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online athttp://www.iobis.org/[details]
additional sourceFroese, R. & D. Pauly (Editors). (2023). FishBase. World Wide Web electronic publication. version (02/2023)., available online athttps://www.fishbase.org[details]
Present Inaccurate Introduced: alien Containing type locality