Kroh, A.; Mooi, R. (2021). World Echinoidea Database.
Urechinus mortenseni David & Mooi, 1990. Accessed through: RAS (Eds.) (2021) Register of Antarctic Species at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=174996 on 2025-04-04
RAS (Eds.) (2025). Register of Antarctic Species.
Urechinus mortenseni David & Mooi, 1990. Accessed at: https://ras.biodiversity.aq/aphia.php/aphia.php?p=taxdetails&id=174996 on 2025-04-04