@inbook{MolluscaBase:SourceID:377710, author = {Blainville, H. M. D. de}, title = {Hélice. Helix (Malacoz.), pp. 390-442, in: Dictionnaire des Sciences Naturelles (F. Cuvier, ed.), vol. 20. Levrault, Strasbourg & Le Normant, Paris.}, url = {https://www.biodiversitylibrary.org/page/29096894}, year = {1821} }