58 Bulletin American Museum of Natural History [Vol. XLVII 



The discrepancies in the average size at the different localities given 

 in the table is doubtless ascribable to differences in the average age of the 

 specimens. 



This large series, from a wide range of localities, is astonishingly uni- 

 form in coloration, Stanleyville and Niangara specimens being indistin- 

 guishable. Season and age appear to exert little influence on coloration 

 of adults, excluding a few specimens in obviously worn pelage. In two 

 nurslings the general coloration of the upperparts is slightly more yellow- 

 ish than in adults and the black dorsal stripes are more sharply defined, 

 owing to the shortness of the pelage. 



Tamiscus alexandri (Thomas and Wroughton) 

 Funisciurus alexandri Thomas and Wroughton, 1907, Ann. Mag. Nat. Hist., 



(7) XIX, May, p. 376. Type locality, Gudima, Iri River, Upper Uele (2 specimens). 

 Paraxerus alexandri Thomas, 1915, Ann. Mag. Nat. Hist., (8) XVI, December, 



p. 473. Medje (4), Poko (1 specimen). 



Tamiscus alexandri Thomas, 1918, Ann. Mag. Nat. Hist., (9) I, January, p. 37. 



Represented by 19 specimens ( 8 & , 1 1 9 ) , from 8 localities (Ava- 

 kubi to Faradje), collected as follows: 



Avakubi, 4 (1 d\ 3 9,3 adult, 1 9 embryo in alcohol), November 

 23, 1913, and January 3, February 22, September 3, 1914. 



Ngayu, 2 ( 9 , cf, adult), December 22, 24, 1909. 



Gamangui, 5 (1 d\ 4 9), January 28, February 8-11, 1910. 



Medje, 2 (tf, 9 ), April 1, May 25, 1914. 



Pawa, 1 (cf adult), October 10, 1910. 



Nala, 1 ( 9 in alcohol), July 1913. 



Rungu, 1 (9 adult), October 28, 1910. 



Faradje, 3 (d\ all adult), November 29, December 2, 1911. 



Collectors' measurements of 4 adults (1 cf , 3 9) from Gamangui: 

 Total length, 215 (214-217); head and body, 105.5 (105-107); tail 

 vertebrae, 110 (109-112); hind foot, 30 (29-31); ear, 14 (all 14). 



Skulls of the same specimens and one other from same locality: 

 Greatest length, 29.5 (29.3-29.9); zygomatic breadth, 17.8 (17.3-18.3). 



Collector's measurements of 3 adult males from Faradje: Total 

 length, 219 (212-226); head and body, 107 (104-109); tail vertebrae, 

 112.3 (108-117); hind foot, 29.7 (29-30); ear, 13 (12-14). 



Skulls of the same specimens: Greatest length, 29.7 (29.5-29.9); 

 zygomatic breadth, 17.9 (17.4-18.6). 



Collectors' measurements of 9 specimens from other localities (Ava- 

 kubi, 3; Pawa, 1; Rungu, 1; Medje, 2; Ngayu, 2): Total length, 217 

 (210-230); head and body, 104 (96-107); tail vertebra?, 112 (103-118); 

 hind foot, 29.9 (29-31); ear, 13.5 (12-15). 



