Stöhr, S.; O’Hara, T.; Thuy, B. (Eds) (2024). World Ophiuroidea Database.
Ophiura crassa Mortensen, 1936. Accessed through: RAS (Eds.) (2024) Register of Antarctic Species at: https://ras.biodiversity.aq/aphia.php?p=taxdetails&id=173631 on 2025-04-16
RAS (Eds.) (2025). Register of Antarctic Species.
Ophiura crassa Mortensen, 1936. Accessed at: https://ras.biodiversity.aq/aphia.php/www.pfeil-verlag.de/04biol/aphia.php?p=taxdetails&id=173631 on 2025-04-16