https://neozoen-bodensee.de/index.php/wirbellose-neozoen/hypania-invalida
Hypania invalida
invalida
https://ns-polychaeta.linnaeus.naturalis.nl/linnaeus_ng/app/views/species/taxon.php?id=78244
Macrobenthos of the North Sea - Polychaeta: Hypania invalida
of thenorth seapolychaetainvalida
https://marinespecies.org/polychaeta/aphia.php?p=taxdetails&id=333647
World Polychaeta Database - Hypania romijni (Horst, 1919)
worldpolychaetadatabasehorst