Mortensen, T. (1934). New Echinoidea. Preliminary Notice. <em>Videnskabelige Meddelelser fra Dansk naturhistorisk Forening i København.</em> 98: 161-167.[details] Available for editors
Kroh, A.; Mooi, R. (2025). World Echinoidea Database. Hemiphormosoma Mortensen, 1934. 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=512935 on 2025-06-22
Glover, A.G.; Higgs, N.; Horton, T. (2025). World Register of Deep-Sea species (WoRDSS). Hemiphormosoma Mortensen, 1934. Accessed at: https://www.marinespecies.org/Deepsea/aphia.php?p=taxdetails&id=512935 on 2025-06-22
original descriptionMortensen, T. (1934). New Echinoidea. Preliminary Notice. <em>Videnskabelige Meddelelser fra Dansk naturhistorisk Forening i København.</em> 98: 161-167.[details] Available for editors