A preliminary account of the Gastropoda (Mollusca) collected by the South Java Deep-Sea (SJADES) Biodiversity Expedition 2018

The South Java Deep-Sea (SJADES) Biodiversity Expedition 2018 sampled the deeper waters of the Sunda Strait and the slopes of the Sunda Trough off the southern coastline of West and Central Java. More than-60 families of gastropods, estimated to be in excess of 300 species, were collected during the expedition. Pending-studies focusing on specific taxon groups or families, around a third of these, or 105 gastropod species from 51-families, are treated in this preliminary account, with remarks on their distribution, first records for Indonesia (of-which 32 species are reported), synonymy, and other notes of interest. A provisional list of the superfamilies and-families provides a brief overview of gastropod material collected by the expedition.