12 MR. O. THOMAS ON MAMMALS FROM [Jan. 17, 



28. MUS (ISOMYS) ABYSSINICUS, Rupp. 



a. 2 juv. Lado, 16/2/84. 

 " House-mouse ; very common." — E. 



29. Mus GUEiNzii, Peters. 



Basymys gueinzii,Veiexs, MB. Ak. Berl. 1875, p. 12, pis. i. & ii. 

 a,b. d & 2 . Stat. Gadda, 1/84. 



" Monbuttu name ' Suhr.' " — E. 



These two specimens agree in all essential characters with 

 Dr. Peters's description, the type of which I have examined in 

 Berlin. His specimen came from the interior of Natal, and this 

 occurrence of the species in Monbuttu is therefore a most remark- 

 able and interesting fact, quite unparallelled by any of the other 

 small mammals of the Emin collection. 



"With regard to the genus " Dasymys " formed by Dr. Peters for 

 this animal, and its alleged relationship to Otomys, I can only say 

 that I am quite unable to see any reason why the species should not 

 be included in the genus Mus, an opinion 1 first came to in Berlin 

 when examining the type, and since confirmed by a direct comparison 

 of Dr. Emin's specimens with Otomys and with many other species 

 of the genus Mus. 



30. Mus KAisERi, Noack. 



a-c. 2 . Stat. Gadda, 1/84. 



d. Skeleton. Stat. Gadda. 

 "Bomu" or "Sinsi."— E. 



These specimens agree very fairly well with Dr. Noack's descrip- 

 tion of a new species obtained by Dr. Bdhm in Marungu. 



31. Mus RUFiNus, Temm. 



a,h. 2 & yg. Stat. Gadda, 1/84. 

 I am not very certain about the determination of these specimens, 

 as Temminck's description is exceedingly vague, and the skull of 

 the type is, unfortunately, in so dilapidated a condition that, as 

 Dr. Jentiuk has been kind enough to inform me, no exact measure- 

 ments can be taken upon it for comparison with those of Emin Pasha's 

 specimen. 



32. Mus UNiviTTATUS, Petcrs. 



a. c? . Tingasi, 24/7/83. 



b. S. Tingasi, 9/10/83. 



c. S . Stat. Gadda, 23/1/84. 



"Iridefusca. Monbuttu name 'Tibo.' Lives in and by water, 

 and swims with facility."' — E. 



This rare species has been previously only recorded from West 

 Africa, the specimens that I have seen being from Dongila (Buchholz, 

 Mus. Berl.), Gaboon (Aubry Le Conte, Mus. Paris and Brit.), and 

 Cameroons (Johnston, Mus. Brit.). Dr. Emin's examples are more 



