The remains described in the following pages were collected by Mr. Herbert Lang in the Namib, south of Liuderitz Bay, South West Africa, with the assistance of Dr. Beetz, the original discoverer of this fossil field. For the privilege of examining them I am indebted to the kindness of my friends Professor Henry Fairfield Osborn and Dr. George Gaylord Simpson. To both these gentlemen I here tender my heartiest thanks. The drawings were made by John Germann. The specimens are very fragmnentary and some are worn and eroded by wind-driven dust and sand. They are supplementary to the collections made by Professor Kaiser and Dr. Beetz in the same area, described by Stromer,2 and, like them, are most probably of Lower Miocene age. The Lower Miocene mammals of the Namib, so far as known, are listed below.