KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 58- N:0 2. 47 



as there at least in two cases must be gra ve misprints, viz. when tlie zygomatic breadth 

 is put to »21 » (or less than the breadth of the brain-case), and the length of the mandible 

 to »29 » mm. If the f igure indicating the length of the palate of P. batesi, viz. 20 mm., is 

 correctly given by Elliot this dimension is very much smaller than in the present species, 

 which thus appears to be fully distinct. 



If the Potto from Mukimbungu, Lower Congo, really is, as I presume, P. batesi 

 there appears to be another difference in dimensions between these two Pottos. The 

 breadth across the outer side of ra- is in P. arrhenii only 21 mm., but in P. batesi 24,3 

 mm. This stånds in connection with the fact that the molars of the latter are very much 

 larger. The transverse diameter of ra 2 and m 3 is thus in the specimen from Mukimbungu 

 resp. 4,7 and 5,i mm. 



Hemigalago demidoffi medius Thomas. 



One specimen from Masisi, 3 days west of Lake Kivu, Febr. 1914. 



The skull is unfortimately broken, but I think the identification is correct. 



Rousettus leachi A. Smith. 

 A female from Masisi, Febr. 1914. 



Hypsignathus monstrosus H. Allén. 

 One specimen without skull. 



Micropteropus pusillus Peters. 

 One specimen without exact locality. 



Potamogale velox argens Thomas. 



One specimen from Masisi, Febr. 1914. The condylobasal length of the skull of 

 this specimen is only 61,5 mm. against 66 mm. in the type, but otherwise the correspond- 

 ence is satisfactory. The locality mentioned appears to be among the easternmost for 

 this chiefly western type. 



Felis leo bleyenberghi Lönnberg. 



1 J* ad., Kabaré, ' n j. 2 191.3; 1 young specimen, Rutshuru, 6 /s 1913; 1 ad. but young 

 c?, Beni 31 / 12 1914. 



►Some years ago the present author had the pleasure of describing a small-headed 

 race of Lion from Katanga, representatives of which were kept in the Congo Museum 

 at Tervueren. 1 The Lions collected by Capt. Arrhenius appear to belong to this same 



1 Rev. Zool. Africaine. Vol. III, fasc. 2, 1913. 



