In the Bavay archives a collection of drawings of Vietnamese land and freshwater snails is present, which have never been published. They originate from Victor Demange who had them made by a local raftsman. The drawings are here reproduced and some biographical data on Demange, and his contributions to malacology, are presented.This item is freely available and free to download from the Folia Conchyliologica website. The attached article is the published version.This item is freely available and free to download from the Folia Conchyliologica website. The attached article is the published version
