MolluscaBase taxon details
original description
(of Micrarionta (Xerarionta) Pilsbry, 1913) Pilsbry, H. A. (1913). Notes upon some lower Californian helices. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 65(2): 380-393, plates 15-16., available online at https://www.biodiversitylibrary.org/page/26307359 page(s): 382 [details]
original description
(of Micrarionta (Plesarionta) Pilsbry, 1939) Pilsbry, H. A. (1939). Land Mollusca of North America (north of Mexico). Volume I Part 1. <em>The Academy of Natural Sciences of Philadelphia Monographs.</em> 3: i-xvii, 1-573, i-ix. Philadelphia [6 December]. page(s): 212 [details] Available for editors [request]
basis of record
Bank, R. A. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: July 16th, 2017. [details] 
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