Pfeiffer, L. (1855). Descriptions of twenty-three species of Helicea, from the collection of H. Cuming, Esq. Proceedings of the zoological Society of London. 22 (269) [“1854”]: 145–150. London [11 April].
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Pfeiffer, L.
1855
Descriptions of twenty-three species of Helicea, from the collection of H. Cuming, Esq.