Kroh, A.; Mooi, R. (2025). World Echinoidea Database. Hygrosoma aethiopicum Döderlein, 1905. Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2025) World Register of Deep-Sea species (WoRDSS) at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=569181 on 2026-07-15
Glover, A.G.; Higgs, N.; Horton, T. (2026). World Register of Deep-Sea species (WoRDSS). Hygrosoma aethiopicum Döderlein, 1905. Accessed at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=569181 on 2026-07-15
basis of recordMortensen, T. (1935). A Monograph of the Echinoidea. II. Bothriocidaroida, Melonechinoida, Lepidocentroida, and Stirodonta, 647 pp., C. A. Reitzel & Oxford University Press, Copenhagen & London. page(s): 208-215 [details]