Lindholm, W. A. (1922). On a new form of Pyramidula rupestris Drap. (Gastropoda Pulmonata) from Western China. Ezhegodnik Zoologicheskogo museya RAN. 23: 255-256.
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Lindholm, W. A.
1922
On a new form of Pyramidula rupestris Drap. (Gastropoda Pulmonata) from Western China