Mammals from the Upper Congo. 475 



46. Cricetomys gamb'anus emini, Wrought. 



757, 758, 7G5, 769, 826. Medje. 



( J60, 1059, 1060, 1062, 1103, 1141, 1220, 1314, 1393, 

 1403, 1492, 1493, 1512. Poko. 



47. Cricetomys gambianus dichrurus, Osg. 



897. Panga, Welle. 



The close agreement of this specimen, as of the pair from 

 the same region mentioned by Mr. Osgood, with the type of 

 dichrurus is very marked. 



Possibly this greyish form is really a race of C. ansorgei, 

 but I provisionally accept Mr. Osgood's name for it. 



48. Lophuromys ansorgei, de Wint. 



861. Medje. 



914, 920, 952, 1144, 1270, 1341, 1473, 1510. Poko. 



Reddish below, as in Heller's " L. pyrrhus,'' but this is 

 also the case in specimens from Mt. Elgon, near the type- 

 locality of ansorgei. 



49. Lophuromys aquilus, True. 



755, 827, 868. Medje. 



1320, 1333, 1368, 1400, 1474. Poko. 



1 provisionally put these specimens under the same name 

 as that which Wroughton and I used in the Ruwenzori Report 

 for the common speckled Lophuromys. A considerable 

 number of names have, however, been added in this group, 

 but the characters are so slight, and in every locality there is 

 so great a range of variation both in colour and skull, that I 

 think many of them will ultimately prove to be untenable. 



50. Colomys goslingi, Thos. & Wrought. 



876, 884, 885. Medje. 



991, 1039, 1051, li00, 1101, 1131, 1156, 1310, 1318. 

 Poko. 



This remarkable Murine, previously only known by the 

 type collected by the late Capt. Gr. B. Gosling at Gamin on 

 the Welle, attracted Dr. Christy's attention very much by 

 its peculiar habits. He says that it lives constantly at the 

 water's edge, where its elongated feet enable it to wade about 

 on the stones, and that it feeds on small water crustaceans 

 and insects, not on vegetable matter. 



