Two taxa of small suids occur at the early middle Miocene locality of Arrisdrift, South West Africa - Namibia. Of these, the more abundantly represented is Lopholistriodon moruoroti, a small listriodont previously known from equatorial sites in Kenya. The second, poorly represented species is a small pig with bunodont dentition, possibly related to the subfamily Tetraconodontinae. The relationships of the two species and their implications for biostratigraphy and palaeozoogeography are explored, and it is concluded that the Arrisdrift strata postdate the first of the Neogene Dispersal Phases of Thomas, dated about 17,5 m.y. ago, but that they are unlikely to be as young as 14 m.y. old.