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Show 1902.] MAMMALS FROM ABYSSINIA. 315 Fur thick, close, and rather crisp, some of the hairs flattened, though not to be called spiny. Back lineated in the type species. Tail short, closely but finely hairy. Skull stoutly built, rather like that of a small short-headed Lophuromys. Palatal foramina very long ; posterior palate continued some way backward behind molars. Incisors narrow, smooth in front, markedly thrown forwards, so that even the tips of the upper ones do not curve backwards towards the throat. Molars strictly murine, without any marked characteristics. m2 and m3 each with a large antero-internal accessory cusp, and the former only with a small antero-external one. Type. Mas imberbis Rupp. Some years ago, by the kindness of the authorities of the Senckenberg Museum, I had the opportunity of examining the type of Riippell's Mas imberbis, and saw at once that it could not be assigned to any known genus. Now that a specimen has been secured by Mr. Degen I venture to give it a generic name. In a general way Muriculus imberbis looks like a pigmy Arvicanthis or Lophuromys, and, while clearly not assignable to any known genus, is somewhat lacking in definitive generic characters, its projecting incisors being its most marked feature. Its whiskers are as abundant as usual, Ruppell's specimen having no doubt lost them accidentally, and it has a distinct dorsal black stripe down the posterior half of the spine. This stripe is not mentioned by Riippell, but is present in the type, as I have personally noted. In some ways this is the most interesting of Mr. Degen's captures, and fills an important lacuna in the National Collection of Muridse. 22. P ec tin ato r s p e k e i Blyth. o. Las Mahan, Somali. 23. L epu s , sp. inc. c?. Marmasa, N.E. of Mt. Asebot. 25 January. o. Miessa, S. of Mt. Asebot. 23 July. Long-eared Desert Hares of the L. cethiopicus type, not satisfactorily determinable without further material. 24. L epus f a g a n i , sp. n. S . Zegi, Lake Tsana, 4000 feet. 28 May. " In scrub."-E. D. A remarkably dark-coloured Hare, quite unlike any of the pale N. African species. Size medium. General colour very dark for an African Hare, the general tone of the back approaching Ridgway's " mummy-brown " ; the underfur with pale slaty greyish bases and buffy tips, the long hairs light for their basal and black for their |