FeB., 1910. New East ArricAan MammMaLts—OscGoop. 13 
Measurements. Type: Total length 257; head and body 105; 
tail vertebre 148; hind foot (c. u.) 24; ear 17. Skull of type: Great- 
est length 29; basilar length 22.9; zygomatic breadth 14.7; nasals 
12; least interorbital breadth 4.5; postpalatal length 10; palatine 
slits 6.3; diastema 7.7; maxillary toothrow 4.7. 
Nasilio brachyrhynchus albiventer subsp. nov. 
Type from Lake Elementeita, British East Africa. No. 16663, 
Field Museum of Natural History. Adult male. Collected Feb- 
ruary 9, 1906, by E. Heller. ; 
Characters. Most similar to Nasilio brachyrhynchus malose but 
underparts nearly white instead of buffy; eye ring narrower; sides 
of face without blackish markings; inside of ears thinly clothed with 
whitish instead of ochraceous hairs; upper lip and sides of “ pro- 
boscis’’ whitish rather than buffy; general color of upperparts prac- 
tically as in malose, decidedly darker than in delamerei. 
Measurements. Type: Total length 224; head and body 116; 
tail vertebre 108; hind foot (c. u.) 31; ear 22. Skull of type: 
Greatest length 33.3; basilar length 31.7; zygomatic breadth 18.7; 
nasals 13.5; least interorbital breadth 5.9; upper tooth series 17.4. 
