480 Mr. O. Thomas on 



less conspicuous. A well-marked buffy line over each eye. 

 Crown grizzled greyish cinnamon. Ground-colour of back 

 buffy or cinnamon greyish as compared with the clear 

 greyish of true macadus. 



Flesh-measurements of no. 943. 



Head and body 100 mm. ; tail 95 ; hind foot 21 ; ear 16. 



Hind foot of type 20'5. 



Skull : greatest length 27*5 ; condylo-incisive length 24'5 ; 

 zygomatic breadth 12*3 ; breadth of brain-case 12 ; palatal 

 foramina 5"5 ; upper molar series (crowns) 4*5. 



Nab. Welle area. Type from Tingasi, Bomakandi River. 



Type. Male. B.M. no. 87. 12. 1. 67. Collected 30th 

 September, 1883, and presented by Emin Pasha. 



Compared with seven specimens of A. macculus taken at 

 different places and seasons, these Welle examples differ by 

 their general cinnamon coloration. Dr. Christy's modern 

 specimen is quite similar to that obtained by Emin Pasha in 

 1883 on the same affluent of the Welle. 



68. Dasymys bentleyce, Thos. 



800. Medje, Ituri. 



935, 999, 1012, 1038, 1092, 1125, 1126,1127,1213, 1235, 

 1245, 1255, 1256, 1301, 1302. Poko, Welle. 



These specimens, taken as a series, are intermediate 

 between D. bentleyce of the Lower Congo and D. medius of 

 Ruwenzori. The majority are as large as the latter (one or 

 two are even larger), while, on the other hand, several are 

 fully as small as the type of D. bentleyce and have equally 

 small bullae. But in this latter character there is, as usual, 

 considerable variability. 



Swamp and river-side animals such as Dasymys are not 

 very likely to have distinctive geographical races in so 

 uniformly waterlogged a country as the Congo area. 



69. Zelotomys instans, sp. n. 



? . 1026. Poko, Welle. 20th June, 1914. 



A Congo representative of the East-African Z. liildegardem. 



Size about as in liildegardea?. Fur rather shorter and 

 crisper. General colour above slaty greyish, without the 

 drab suffusion characteristic of hildegardeai. Median line 

 blackish slaty, sides clearer greyish. Under surface slaty 

 grey washed with whitish, the slaty bases of the hairs showing 

 through. Cheeks and throat not so markedly white as in 



