476 Mr. O. Thomas on 



51. (Enomys hypoxanthus, Pucli. 



756, 760, 789, 806, 821, 841. Medje. 



1040, 1135, 1229, 1230, 1321, 1458, 1470, 1471, 1472. 

 Poko. 



The majority of the specimens agree absolutely with 

 Cameroons and Gaboon examples of hypoxanthus, and have 

 teeth of the same comparatively large size ; but in some the 

 teeth are rather smaller, and it is possible that these are 

 referable to the Uganda (E. bacchante. There is, however, so 

 much variation both in colour and skull-characters in this 

 genus that it is not possible to identify every specimen satis- 

 factorily without more material and prolonged study. 



52. Thamnomys rutilans centralis, Dollm. 



752, 762, 781, 782, 792, 834, 855, 856. Medje. 



1041, 1067, 1071, 1087, HOG, 1130, 1132, 1350, 1372, 

 1374, 1375, 1378, 1380, 1383, 1386, 1387, 1391, 1392, 1411, 

 1412, 1413, 1481. Poko. 



Although I use the above name as being unquestionably 

 applicable to these specimens, there is so much variation 

 among them in the size of the skull and teeth that they may 

 possibly prove to grade into the earlier Thamnomys kuru, 

 Thos. & Wr., whose distinction from Th. rutilans mainly 

 consists in its smaller size. The type of Th. kuru was from 

 Gambi, Mobatti country, and that of centralis from Fundi. 



53. Thamnomys venustus, Thos. 



<J. 830. Medje. 



Only hitherto known from the type, which is slightly 

 larger, but the difference does not exceed that found among 

 the seiies of Th. rutilans. The long parallel-sided palatal 

 foramina and the grey-based chest-hairs are very charac- 

 teristic. Th. kempt, Dollm., also belongs to the same group. 



54. Grammomys macmillani, Wrought. 

 1457. Poko. 



55. Malacomys centralis, de Wint. 



783, 786, 875, 877, 878. Medje. 



951, 956, 962, 1015, 1019, 1068, 1072, 1086, 1107, 1128, 

 1238, 1319, 1334, 1335, 1337, 1338, 1339, 1379, 1381, 1382, 

 1383. Puko. 



Type from Tingasi (Emin Pasha). 



