(ofHelix oweniana L. Pfeiffer, 1854)Pfeiffer, L. (1854). Descriptions of twenty-three new species of land shells, from the collection of H. Cuming, Esq. <em>Proceedings of the Zoological Society of London.</em> 21 (250–251) [“1853”]: 48–53. London [25 July]., available online athttps://biodiversitylibrary.org/page/30747171 page(s): 49 [details]
original description(ofHelix oweniana L. Pfeiffer, 1854)Pfeiffer, L. (1854). Descriptions of twenty-three new species of land shells, from the collection of H. Cuming, Esq. <em>Proceedings of the Zoological Society of London.</em> 21 (250–251) [“1853”]: 48–53. London [25 July]., available online athttps://biodiversitylibrary.org/page/30747171 page(s): 49 [details]