This is a complete account of a primitive skull found by the author in a sand-quarry on the Cape Flats, near Cape Town. The special features of this skull are prominent torus supraorbitalis, low sloping forehead, and small cranial capacity. These are analyzed by means of various chords, arcs, and angles, and with the help of an endocranial cast. Tables of comparative measurements of the dentition of this skull show that the teeth are larger than those of existing So. African races. From its low morphological status the author concludes that it is a representative of an extinct intermediate group linking Mousterian man with modern man.