Pfeiffer, L. (1855). Descriptions of forty-two new species of Helix, from the collection of H. Cuming, Esq. Proceedings of the Zoological Society of London. 22 (263) [“1854”]: 49-57. London [10 January].
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Pfeiffer, L.
1855
Descriptions of forty-two new species of <i>Helix</i>, from the collection of H. Cuming, Esq.