MolluscaBase name details
original description
Baker, F. C. (1913). <i>Pseudogalba</i>, new name for <i>Simpsonia</i>. <em>The Nautilus.</em> 26(10): 120., available online at https://www.biodiversitylibrary.org/page/1738331 [details]
basis of record
Bank, R. A. (2017). Classification of the Recent freshwater/brackish Gastropoda of the World. Last update: January 24th, 2018. OpenAccess publication. [details]