MolluscaBase eds. (2025). MolluscaBase.
Calliostoma modestulum Strebel, 1908. Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2025) World Register of Deep-Sea species (WoRDSS) at: https://www.marinespecies.org/Deepsea/aphia.php?p=taxdetails&id=532529 on 2025-11-26
Glover, A.G.; Higgs, N.; Horton, T. (2025). World Register of Deep-Sea species (WoRDSS).
Calliostoma modestulum Strebel, 1908. Accessed at: https://www.marinespecies.org/DeepSea/aphia.php?p=taxdetails&id=532529 on 2025-11-26