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.
Thyonidium Düben & Koren, 1846. Accessed at: https://www.marinespecies.org/msbias/aphia.php?p=taxdetails&id=123503 on 2024-07-19