Myotomys unisulcatus Example specimen, KM-8825 ?, Amay1939 Hebronis, N.W.C.P., P.J. Golden hugs HB-158, T1-75, HF-25, For-24, Brownish grey back, below light grey, tail black above. Myotomys unisulcatus bergensis Example specimen - KM-8863 ?, 17 Jan. 1938, Compsagnies Drift, Lamperts Bay, 100' Shortridge, HB-177, T1-111, HF-25.5, For 24 feet light whitish grey, tail very black above, light grey yellow below, grey brown above. Myotomys sloggetti; KM-8996 ?, 22 Apr. 1945, 4409995Kerk, Tarkastad Dist-C.P., Arends, 127,54,22/19. Trapped on rocks, warrens under stones in veldt. Desc - brownish grey above, ears intra slight ruffous tinge below lighter grey brown, mostly slate grey feet whitish-brown pabs black, tail 3 length of body, light grey above, whitish grey below, Myotomys u. guantii KM-11346 ?, 14 July 1945, Deelfontein 5tn. C.P., Golden hugs, 155,100,28,22. Desc - above dark quiggled brownish grey with black tipped guard hairs, sides slightly lighter, below light brownish grey with a ruffard tinge tail 1/3 body length black above below black with a ruffous brown tinge, top of ears black, chin whitish brown.