MolluscaBase name details
original description
Morse, E. S. (1920). On the occurrence of <i>Pyramidula rupestris</i> in Maine. <em>The Nautilus.</em> 34(2): 58-59., available online at https://www.biodiversitylibrary.org/page/1732971
page(s): 59, fig. 1 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project.
page(s): 59, fig. 1 [details]