The Ypresian/Lutetian freshwater limestone at Black Crow has yielded a diverse fauna comprising aquatic, aquaphile and terrestrial elements. Among the fossil remains there are abundant land snails, but thus far no aquatic molluscs have been identified. The presence of large specimens of Dorcasia and small specimens of subulinids suggests that at the time of deposition, the region enjoyed a tropical to sub-tropical climate with summer rainfall. Keywords: Palaeogene, Namibia, Mollusca, Gastropoda, Subulinidae, Dorcasiidae.