MolluscaBase name details
original description
Powell, A. W. B. (1951). On further colonies of <i>Placostylus</i> land snails from northernmost New Zealand. <em>Records of the Auckland Institute and Museum.</em> 4: 134–140., available online at https://www.biodiversitylibrary.org/page/60717620
page(s): 137 [details]