THE FRENCHMAN JOSEPH CHARLES HIPPOLYTE CROSSE was educated as a lawyer but dedicated his whole life to malacology. He joined the editorial board of the Journal de Conchyliologie in 1861, and was managing director of the journal until his death in 1898. He was thus one of the spiders in the web of late 19th century malacology and had a core position to make a great contribution to this discipline. We have reconstructed his legacy with the help of archival sources and found his type material in the historical collections of several museums.
The resulting monograph includes three volumes, of which this is the second. This volume is made up of four parts.
In the first part we give, after a brief sketch of the context of French malacology in the 19th century, an overview of the network in which Crosse operated. The inventory of the ‘Crosse archive’ is updated with some new data and portraits. We provide evidence for the relation between his contact network and the use of eponyms in the taxa newly introduced, and use the same social network analysis to explore the relationship between the Nouvelle École and the authors that regularly published in the Journal de Conchyliologie. This part is concluded with the correspondence from Paul Fischer to his co-editor, which sheds a new light on their relationship.
In the second part the correspondents from France are treated, highlighting the letters of Bourguignat, Drouët, and Marie.
The third part deals with the German correspondents, presenting transcriptions and translations of letters from Heynemann, Kobelt, Lischke, von Maltzan, von Martens, L. Pfeiffer, Schmeltz, and Weinkauff.
The last part, on correspondents from Spain, highlights some selected malacologists, viz. Arango, Hidalgo, and Paz y Miembiela.