Ancient science networks in action: the collaboration between J.G. Hidalgo and H. Crosse, and the creation of ‘Moluscos del Viaje al Pacifico, Univalvos terrestres’

The material collected during a Spanish, multi-year expedition to the Neotropics in the 1860s was described by J.G. Hidalgo in the ‘Moluscos del Viaje al Pacifico’. Correspondence between Hidalgo and H. Crosse reveals how part of the material collected by the ‘Comisión Cientifíca del Pacífico' was identified by Crosse, some of it published as new species in his Journal de Conchyliologie. This correspondence further reveals how the obstacles to publish the results of the expedition were overcome, and sheds light on the actual publication date of the different parts. A reconstruction of the contacts of Hidalgo shows how diversified the network of the malacologist was.