330 bulletin: museum of comparative zoology. 



The white spot at the base of the ear is not conspicuous. Compared 

 with A. kemjn from British East Africa, these specimens are only a 

 trifle paler, and externally hardly to be distinguished. One specimen 

 was taken in a trap placed on a leaning stump some three feet from 

 the ground. 



Mus (Leggada) tenella (Thomas). 

 Blue Nile Harvest Mouse. 



Leggada tenella Thomas, Proc. Zool. soc. London, 1903, 1, p. 298. 



Three specimens were preserved from Magangani and El Garef, 

 both within a few miles of Roseires, the type locality. Two of the 

 specimens are immature and much darker o^'er the back than the 

 other which is an adult. The type is said to have the fore legs en- 

 tirely white, but in these two youngish specimens they are buffy like 

 the sides of the body, and very pale buffy in the adult. The white 

 spot at the outer base of the ear is very marked, whereas in the dark 

 L. bella of British East Africa this spot is practically wanting. 



Several other specimens were trapped along the Blue Nile at El Garef, 

 Magangani, Bados, among the thorn bushes and tall grass canes, but 

 they were nowhere common. The adult female measured: — total 

 length 116 mm., tail 54, hind foot 13, ear from meatus 10. 



Epimys macrolepis (Sundevall). 



Large-scaled Rat. 



Mus macrolepis Sundevall, Kongl. Svenska vet.-acad. Handl., for 1842, 1843, 

 p. 218. 



The identity of Sundevall's Mus macrolepis is still a matter of 

 some doubt, as indicated by Wroughton (1911, p. 460), and its author 

 was himself uncertain whether or not it was the same as Riippell's 

 Mus albipes. The type locality of the former is Roseires, and there 

 can be no doubt whatever, from Sundevall's careful description, that 

 his macrolepis is the common ground rat which we found all along 

 our journey from Sennar to Fazogli on the Blue Nile, and wherever 

 we trapped on the Dinder River. The name is based on the fact that 

 the caudal scales seemed large, five to 5 mm., but in our dried speci- 

 mens there are six to 5 mm. No doubt Sundevall made the measure- 

 ment from alcoholics. Until it can be shown, therefore, that Mus 



