64 Bulletin American Museum of Natural History [Vol. XL VII 



Medje, 36 (12 cf, 21 9 — 2 <?, 2 9 immature, 2 skulls, 4 skeletons, 1 

 embryo in alcohol), January 16-26, March 8-26, April 4-27, May 14, 

 June 30, August 18, October 7, 1910, March 23, June 25, 1914. 



Niapu, 10 (7 d\ 3 9), November 19, 24, 26, December 4-9, 16, 

 1913. 



Akenge, 4 (2 cf, 2 9 ), September 30, October 14, 16, 1913. 



Collectors' measurements of 23 adults (7 d\ 16 9 ) from Medje: 



Total Length Head and Body Tail Vertebrae Hind Foot Ear 



cT 371 (359-390) 227 (210-242) 144 (138-152) 43.0 (40-46) 29.8 (30-32) 

 9 373 (357-401) 230 (212-246) 148 (141-157) 44.5 (40-47) 30.0 (30-32) 



Skulls (10 cf , 14 9 ), same series: 



Occipito-nasal Length Zygomatic Breadth 



c? 44.8 (43.6-46.6) 29.8 (28.0-30.9) 



9 45.2 (43.6-47.6) 29.9 (28.0-30.8) 



Collectors' measurements of 9 adults (7 cf, 2 9) from Niapu: 

 Total length, 371 (353-382); head and body, 219 (213-227); tail verte- 

 bra, 143 (130-147); hind foot, 43.7 (42-46); ear, 29.2 (28-30). 



Skulls, same specimens: Occipito-nasal length, 45.1 (43.5-46.3); 

 zygomatic breadth, 29.7 (28.3-30.2). 



Very few of the specimens of the present series conform very closely 

 in the coloration of the upperparts to the original description and accom- 

 panying colored plate of the species, of which it is said: " General colour 

 above uniform dark grizzled gray, the tips of the hairs forming a terminal 

 band of pale gray or olivaceous." In many specimens of the present 

 series this " terminal band" is near ochraceous rufous, intensified in ex- 

 ceptional specimens to pale tawny. One specimen from Akenge may be 

 noted as having the pelage of the back hazel for the terminal half or more 

 of the hairs, recalling forcibly the dorsal region in A . beldeni Du Chaillu 

 ( = ? erythronotus Milne-Edwards) but the red is browner. This speci- 

 men, however, is probably abnormal, as the new coat, coming in in 

 patches, conforms to that of normal specimens. 



Anomalurops Matschie 



Anomalurops Matschie, 1914, Sitzungsb. Ges. naturf. Freunde Berlin, No. 7, 

 July, p. 351. Genotype, by original designation, Anomalurus beecrofti Fraser. 



This group includes six described forms, the greater part of which 

 appear to be subspecies of A. beecrofti. The type locality of A. beecrofti 

 chapini, described below, is far to the eastward of any previously known 

 locality for the beecrofti group. 



