A new record of ‘Achatina’ vassei Germain, 1918 (Gastropoda, Pulmonata, Achatinidae) from Mozambique – an unsolved problem

'Achatina vassei Germain', 1918, of which so far only the holotype is known (figured), is now recorded from Gorongosa National Park in Mozambique (Sofala Province) north of the road Beira-Mtare (Zimbabwe). The systematic position is still unclear because of the lack of anatomical data; this taxon is probably a restricted-range species centred on the plateau of Central Mozambique. A list of the terrestrial molluscs of the ‘Greater Gorongosa Ecosystem’ from the literature and specimens in the Leiden Museum is added; Curvella whytei E.A. Smith, 1899, is recorded as new for Mozambique.