The genus Kermia Oliver, 1915, is recorded for the first time from South Africa. New species described are: Kermia geraldsmiithi sp. n., K. clathurelloides sp. n., K. drupelloides sp. n. and K. eugenei sp. n. New records for southern Africa are: Kermia melanoxytum (Hervier, 1896), K. edychroa (Hervier, 1897), K. pumila (Mighels, 1845), K. daedalea (Garrett, 1873) and K. producta (Pease, 1860). New synonymies established are: Clathurella birtsi Preston, 1908 and Mangelia chrysolitha Melvill & Standen, 1896 under Kermia punctifera Garrett, 1873; Pleurotoma gracilis Folin, 1871 and Mangelia anxia Hedley, 1909 under Kermia edychroa (Hervier, 1897); Pseudodaphnella punicea Hedley, 1922 under Clathurella blanfordi pullula Hervier, 1897 = Pseudodaphnella pullula; Defrancia mauritiana Sowerby, 1893 and Clathurina foraminata pyrgodea Melvill, 1917 under Clathurella producta Pease, 1860; Clathurella spelaeodea Hervier, 1897 under Clathurella infrasulcata Garrett, 1873 (currently Pseudodaphnella subgenus Qii). Type specimens of the following species are also illustrated: Pleurotoma apicalis Montrouzier in Souverbie, 1861; Pleurotoma cavernosa Reeve, 1845; Pleurotoma margaritifera Reeve, 1846; Glyphostoma melanoxytum Hervier, 1896; Clavatula tessellata Hinds, 1843. New combinations are established: Clathurella blanfordi G. & H. Nevill, 1875 transferred to the genus Paramontana Laseron, 1954, and Clathurella martensi G. & H. Nevill, 1875 to Pseudodaphnella Boettger, 1895. Pleurotoma pustulosa Folin, 1867 and Pleurotoma foraminata Reeve, 1845 are considered nomina dubia. A lectotype is designated for Clathurella daedalea Garrett, 1873.