Holyoak, D. T., & Holyoak, G. A. (2012). An undescribed second species of Plagyrona from Portugal (Gastropoda, Pulmonata: Valloniidae). Journal of Conchology. 41(2), 153-165.
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Holyoak, D. T., & Holyoak, G. A.
2012
An undescribed second species of Plagyrona from Portugal (Gastropoda, Pulmonata: Valloniidae)