MolluscaBase eds. (2024). MolluscaBase.
Cirsonella extrema Thiele, 1912. Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2024) World Register of Deep-Sea species (WoRDSS) at: https://marinespecies.org/Deepsea/aphia.php?p=taxdetails&id=197116 on 2024-04-20
Glover, A.G.; Higgs, N.; Horton, T. (2024). World Register of Deep-Sea species (WoRDSS).
Cirsonella extrema Thiele, 1912. Accessed at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=197116 on 2024-04-20