Kroh, A. & Mooi, R. (2019). World Echinoidea Database. Echinacea. Accessed through: (Eds) (2019) Register of Antarctic Species at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=149855 on 2021-01-18
RAS (Eds.) (2021). Register of Antarctic Species. Echinacea. Accessed at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=149855 on 2021-01-18