MAMMALS OF ANGLO-EGYPTIAN SUDAN — SETZER 505 



considered all to belong to one species since the characters for each of 

 them show a considerable degree of overlapping. 



Oenotnys hypoxanthus talangae, new subspecies 



Type: MCZ No. 45315, adult female, skin and skull, from Talanga 

 Forest, 3,000 ft., Imatong Mountains, Equatoria Province, Anglo- 

 Egyptian Sudan. Obtained July 10, 1950, by J. S. Owen, original 

 No. 1338. 



Specimens Examined: Two, from the Talanga Forest. 



Measurements of the Type Specimen: Length of head and body 

 175; length of tail 203; length of hind foot 34; greatest length of 

 skull 39.6; cond3doincisive length 35.4; length of anterior palatine 

 foramina 7.6; crown length of upper toothrow 6.6; least interorbital 

 width 5.4; breadth of rostrum at level of antorbital foramen 5.0; 

 length of nasals 15.8; greatest width across zygomatic arches 17.9. 



Diagnosis: General over-all color of upperparts near Argus Brown; 

 the line of pure color separating dorsal color from pure white belly 

 and pure color on flanks and thighs near Pinkish Cinnamon; pure 

 color of nose near Tawny; entire underparts and undersurfaces of 

 arms and legs pure white, all hairs white to base; tail nearly naked 

 and rather uniformly colored; hands and feet dark grayish brown. 

 Skull relatively long and slender; nasals long and rather wide; rostrum 

 wide; auditory bullae relatively small; upper cheekteeth relatively 

 small; anterior palatine foramina relatively short and widely flaring; 

 braincase relativel}^ long. 



Comparisons : From Oenomys hypoxanthus unyori, 0. h. talangae dif- 

 fers in much darker dorsal color, less rufous on the rump, and less 

 definite line of demarcation between the dorsal color and the pure 

 white belly. The nasals are longer, the braincase is longer, the 

 anterior palatine foramina are larger, the auditory bullae are larger, 

 and the rostrum is narrower. 



0. h. talangae differs from 0. h. editus in generally darker color and 

 less rufous on the nose and rump. The skull has longer nasals, smaller 

 auditory bullae, and a wider rostrum. 



0. h. vallicola differs from 0. h. talangae in generally lighter color, 

 more rufous on rump and nose, shorter tail, and somewhat larger ears. 

 The skull is smaller, the upper toothrow longer and the individual teeth 

 wider, the anterior palatine foramina longer and narrower, auditory 

 bidlae larger, and the rostrum shorter and narrower. 



Remarks: The subspecies to which 0. h. talangae is most closely 

 related is 0. h. unyori, from which it differs as set forth above. It is 

 interesting that this new subspecies has the rufous of the rump and 

 nose so much reduced. The types of bacchante, moerens, and oris are 

 all so brightly colored that talangae needs no comparison with them. 



