original description(ofHelix (Leucochroa) H. Beck, 1837)Beck, H. (1837-1838). <i>Index molluscorum praesentis aevi musei principis augustissimi Christiani Frederici</i>. 124 pp. Hafniae [Copenhagen]. Pp. 1-100 [1837]; 101-124 [1838]; Appendix: 1-8 [June 1837]. , available online athttps://biodiversitylibrary.org/page/32058074 page(s): 16 [details]
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