Literature

• Bos, O.G., Bakker, P.A.J., Henkens, R., Debrot, A.O. & Freitas, J. de 2018. Preliminary checklist of extant endemic species and subspecies of the windward Saba and the Saba Bank. 65. Wageningen Marine Research Report no. C067.18.
• Winter, A.J. de, van Leeuwen S., Hovestadt, A. 2016. A new species of Glyphyalus (Gastropoda, Pulmonata, Oxychilidae) from the Dutch Caribbean island of St. Eustatius. Basteria 80(1-3): 39-46.

Literature references linked to higher taxa

• Coomans, H.E. 1970. Volksnamen voor weekdieren op de Nederlandse Antillen. Nieuwe West-Indische gids 47(2): 158-186. (Mollusca)
• MolluscaBase. MolluscaBase. [link] (Gastrodontoidea)
• WoRMS. World Register of Marine Species. www.marinespecies.org. [link] (Heterobranchia)