https://www.biodiversity.org.na/ & Cimbebasia 12: 99-110 (1990)

9 spp Glossiphoniidae & 3 spp Hirudinidae.
5 spp (Al. cheili, Al. conjugata, Ba. tricarinata, Pl. multistriata & Hi. michaelseni) widespread.
4 spp (Al. disjuncta, He. conifera, Pl. jaegerskioeldi & As. fenestrata) only in n half
3 spp (Oo. garoui, Oo. stuhlmanni & Al. obscura [claimed a Nambian Endemic ]) only in centre
3 spp still undescribed.