Hedley, C. (1899). The Mollusca of Funafuti. Part I - Gasteropoda. <em>Memoirs of the Australian Museum.</em> 3(7): 395-488, pl. 27., available online athttp://biodiversitylibrary.org/page/33592636 page(s): 412 [details]
MolluscaBase eds. (2021). MolluscaBase. Obtortio Hedley, 1899. Accessed through: Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2021) African Register of Marine Species at: http://marinespecies.org/afremas/aphia.php?p=taxdetails&id=473025 on 2026-01-19
Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2026). African Register of Marine Species. Obtortio Hedley, 1899. Accessed at: https://www.marinespecies.org/afremas/aphia.php?p=taxdetails&id=473025 on 2026-01-19
original descriptionHedley, C. (1899). The Mollusca of Funafuti. Part I - Gasteropoda. <em>Memoirs of the Australian Museum.</em> 3(7): 395-488, pl. 27., available online athttp://biodiversitylibrary.org/page/33592636 page(s): 412 [details]