On a recent trip to Ghana I got some snail shells from a boy in a village near Axim. He collected the snails on the banks of the Nyang River in the western region. They are around 90 mm long and seem to be specimens of Archachatina ventricosa Gould, 1850. In literature the habitat range indicated is Sierre Leone to Ivory Coast. This record from Ghana extends their range eastwards.
The specimens are quite rounded with a reddish spire and I just now noticed how different the colors inside the aperture are ! They both have deep pink columellas, but the aperture of the shell on the left is pale mauve within ( bordered at the lip with the same deep pink as the columella ), in the aperture of the other shell these colors are reversed. Amazing colors !