When I visited the town of Burghersdorp, Cape Colony, with the aid of a grant from the Percy Sladen Trustees, I was given by Mr. Maasdorp, the district surveyor, some fossil bones which he had collected at a locality on the farm Witkop, District Albert. Subsequently, through the kindness of D. V. Kannemeyer, Esq., its owner, I had the opportunity of examining the spot and obtained remains of Theropodous Dermosaurs, showing, as was already perfectly clear from its stratigraphical relations, that the locality lay in the ‘Red Beds’ of the Stormberg Series far above the Cynognathus beds of Burghersdorp, which have yielded so many Cynodont remains.