1934] Hatt, American Museum Congo Expedition Pangolins and Aard-Varks 663 



The two skins show the same sex dichromatism described below for 

 0. e. faradjius but do not exhibit any coat character by which I can 

 distinguish them from this other race. 



The ears are very short and measure from notch to tip on the tanned 

 skins 95 and 93 mm., in contrast to corresponding measurements of 120, 

 120, 125, and 140 mm. on the four largest specimens from Faradje. 



The claws of 0. erikssoni are larger than those of 0. e. faradjius, 

 as shown by measurements of the claw of the third digit of the manus. 

 In the former, this length, from eponychium to nail tip is 54 mm. in one 

 of the two specimens, 55 in the other. Similar measurements on four 

 adult 0. e. faradjius are 40, 40, 43, and 45 mm. 



The skull of Lonnberg's aard-vark is easily distinguished from that 

 of Faradje specimens by size, the character of the anterior base of the 

 zygoma, the mandibular proportions, and the less conspicuous features 

 noted in the diagnosis of the savanna race. The species differs unmis- 

 takably from such Abyssinian, East African, and South African animals, 

 as I have seen in many features, of which, as Grote has shown, the man- 

 dibular are among the most striking. 



Orycteropus erikssoni faradjius Hatt 

 Plates XXXVII, Figure 2; XXXVIII; XXXIX; Figure 2 6 

 Orycteropus erikssoni faradjius Hatt, 1932, American Museum Novitates No. 

 535, p. 1. 



Orycteropus e. faradjius is a large aard-vark occurring in the savannas 

 of the northeastern Congo. It differs from 0. e. erikssoni in smaller size, 

 longer ears, and shorter claws. The anterior base of the zygoma is 

 broad (over 20 mm.), the mandible heavy. 



Orycteropus e. faradjius is represented in the collections of The 

 American Museum of Natural History by 9 skins, 11 skulls with 10 

 skeletons, collected at Faradje between May 27, 1911 and February 24, 

 1913. Of these eleven individuals 4 are adult males, 6 adult females, and 

 one a juvenile male. 



The collector's measurements of the adults as summarized into 

 averages, minima and maxima, are : 



Total Length Tail Length Foot Length Ear Length 



10 d\ 9 1750 (1610-1850) 642 (580-720) 273 (263-290) 170 (158-180) 



4 tf 1 1721 (1640-1785) 637 (610-720) 276 (270-290) 169 (162-175) 



6 9 1770 (1610-1850) 644 (580-700) 270 (263-275) 171 (158-180) 



The height at shoulder of two adult females was recorded as 400 

 and 370 mm., respectively. Other measurements of a female whose total 



