38 Bulletin American Museum, oj Natural History [Vol. XL VII 



The adult males have a short-haired, glandular pectoral area, the 

 short hairs of which, and the longer enclosing pelage, are cream-color, 

 due possibly to staining. In some males this area has an axial extent of 

 20 mm. or more and a breadth of 10 mm., thus forming a conspicuous 

 feature of the ventral surface, but it is less developed in females. 



The Niangara series, taken at the close of the rainy season, are 

 rather brighter colored — more rufescent and less gray above — than those 

 from Faradje collected some two or three months later. The difference 

 is not wholly constant and may be seasonal, as some specimens of the 

 Niangara series are indistinguishable in coloration from some of the 

 Faradje specimens. 



Collectors' measurements of 7 adult males and 10 adult females from 

 Faradje : 



Total Length Head and Body Tail Vertebrae Hind Foot Ear 



d* 204 (200-207) 115 (109-128) 91.3 (84-96) 29.3 (28-31) 21.0 (20-22) 

 9 210 (201-224) 120 (114-129) 91.0 (85-99) 29.2 (28-30) 22.2 (20-23) 



Skulls, 5 males, 9 females, Faradje series: 



Total Length Zygomatic Breadth 



& 34.4 (34 -34.7) 17.1 (16.4-18.1) 



9 34.9 (36.6-36.4) 17.4 (16.6-18.1) 



The minima are all from rather young adults, the maxima from 

 obviously very old skulls. The females show a slightly larger average 

 size than the males, both in external and cranial dimension. 



These specimens agree satisfactorily with the description of the type 

 of fuscipes when those corresponding with it in age ("a somewhat imma- 

 ture female. . . having still its milk dentition in place") are con- 

 sidered. Geographical conditions may be taken as confirmatory of this 

 identification, the type locality (Doruma) of fuscipes being about 100 

 miles north of Niangara and some 160 miles west of Faradje and 

 Garamba. These four localities, Mr. Lang assures me, are in regions of 

 similar environment. The present series, if here correctly referred, 

 shows that Macroscelides fuscipes Thomas belongs to the genus Nasilio 

 Thomas and Schwann 1 (type Macroscelides brachyrhynchus A. Smith), 

 the molars being f . The type of fuscipes was so young that it could give 

 no hint of the number of the molars, but it is described as "most nearly 

 allied to M. brachyurus Boc," of which the author says: "Sa machoire 

 inferieure porte chaque cote une molaire de plus, onze dents au lieu 

 de dix." 2 



■1906, Proc. Zool. Soc. London, II, p. 578. 



Socage, 1889, Journ. Sci. math. phys. nat. Acad. Madrid, (2) T, No. 1, p. 24, Marco. 



