(ofHelix anomala L. Pfeiffer, 1849)Pfeiffer, L. (1849). Descriptions of fourteen new species of Helicea, from the collection of H. Cuming, Esq. <em>Proceedings of the zoological Society of London.</em> 16 (187) [“1848”]: 109–112. London [25 April]. page(s): 110 [details]
original description(ofHelix anomala L. Pfeiffer, 1849)Pfeiffer, L. (1849). Descriptions of fourteen new species of Helicea, from the collection of H. Cuming, Esq. <em>Proceedings of the zoological Society of London.</em> 16 (187) [“1848”]: 109–112. London [25 April]. page(s): 110 [details]