(ofClausilia (Diadoma) Westerlund, 1901)Westerlund, C. A. (1901). Synopsis molluscorum in regione palaearctica viventium ex typo Clausilia Drap. <em>Mémoires de l'Académie Impériale des Sciences de St.-Pétersbourg, Classe des Sciences Physiques et Mathématiques, VIIIe Série.</em> 11 (11): xxxvii + 203 pp. St.-Petersburg [> 4 October]., available online athttps://www.biodiversitylibrary.org/page/11651066 page(s): xxvi, 173 [details]
original description(ofClausilia (Diadoma) Westerlund, 1901)Westerlund, C. A. (1901). Synopsis molluscorum in regione palaearctica viventium ex typo Clausilia Drap. <em>Mémoires de l'Académie Impériale des Sciences de St.-Pétersbourg, Classe des Sciences Physiques et Mathématiques, VIIIe Série.</em> 11 (11): xxxvii + 203 pp. St.-Petersburg [> 4 October]., available online athttps://www.biodiversitylibrary.org/page/11651066 page(s): xxvi, 173 [details]
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