The Oscheius genomes project aims to produce chromosomally-complete genome sequences for all species, and putative species, in the rhabditine nematode genus Oscheius. The assemblies are provided by the Wellcome Sanger Institute Nem@ToL project in collaboration with the Tree of Life programme Genome Engine teams. The data under this project are made available subject to the Wellcome Sanger Institute Data Sharing policy (see https://www.sanger.ac.uk/about/who-we-are/research-policies/open-access-science/ ).