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Show 314 MR. OLDFIELD THOMAS OX [Nov. 4, remarks on its molar differences) as an Arvicanthis, but which I think is also more nearly allied to Pelomys. From that species P. harringtoni differs by its striped belly and smaller molars. 1 have named this handsome and remarkable species, which is distinguished from all its allies by the brilliant striping of its under surface, in honour of Col. Harrington, the British Resident at Addis Ababa, to whose assistance all British travellers in Abyssinia are so much indebted. With regard to the use of the name Pelomys, a genus of recent years synonymized with the Indian Gol-unda, I have come to the conclusion that after all the two forms may well be considered as generically distinct. Like as they are in external characters, and in skull and incisor structure, the molars of the two groups show such differences in detail that, combined with the different geographical distribution, I think it would be best to keep them apart. While the molars of Pelomys are of fairly normal murine structure, with subequal anterior accessory tubercles, m2 and m3 of Golunda have their antero-internal tubercles hypertrophied and their antero-external ones minute or obsolete, so as to give a peculiar oblique appearance to the teeth. In outline the latter are also broader, shorter, and less narrowed posteriorly. The teeth of Golunda have been well figured by Blanford 1 and those of Pelomys by Peters2. Even after the removal of Golunda it is by no means certain that Pelomys dombeensis and P. harringtoni, with their almost ungrooved incisors, ought to be considered as congeneric with P. fallax, but I do not care to separate them without seeing what representative forms occur in the intermediate countries. 20. L o phuromy s fl a vo pu xc t a tu s Thos. 2 c?, 2 $ . Addis Ababa, 8000 feet. February and March. <$ . Yah-Yah, Shoa. 18 April. The type of this species, which was discovered by Sir W. C. Harris during his Mission to Shoa in 1843, was probably obtained at Ankober, about 100 miles N.E. of Addis Ababa. As is usual in this genus, the bellies of these specimens vary considerably in the intensity of their yellowish suffusion, the two females being the most strongly coloured. The upper surfaces are also by no means uniform in tone. 21. M uricultjs im b er b is Riipp. o. Zige, Lake Tsana, 4000 feet. 1 June. M u r ic u lu s , gen. nov. Size very small; proportions about as in Lophuromys. Hind feet with the fifth digit short, though not quite so short as the hallux. Claws small, not markedly elongated. * Mamm. Ind. p. 427 (1891). 2 Eeise Mossamb., Mamm. pi. xxxv. fig. 9 (1852). |