204 Bulletin American Museum of Natural History. [Vol. XXXIV, 
Geographic Distribution— Central Andes, from the Salento district 
(near Quindio Pass), south to Miraflores, at altitudes of 6000 to 9000 feet. 
Description.— Upperparts with a broad median dusky band, sparingly 
punctated with ochraceous, the rest of the upperparts with the hairs 
broadly tipped with bright ochraceous; underparts nearly uniform pale 
yellow; tail as usual in the group, blackish above washed with white, below 
grizzled ochraceous and black edged with white. 
Total length (type, collector’s measurements), 312 mm.; head and body, 
163, tail vertebrae, 143; hind foot, 40. Six adult specimens, Salento and a 
little above Salento (7000-9000 feet): Total length, 300.5 (288-312); head 
and body, 158 (149-163); tail vertebree, (1385-150); hind foot, 41.7 (40-45). 
Skull (type), total length, 42; zygomatic breadth, 24; postorbital 
breadth, 12.4; breadth of braincase, 20; length of nasals, 11; maxillary 
toothrow, 6.8. ! 
Specumens examined, 14.— Colombia, western slope of Central Andes: 
Salento and vicinity, 7; El Roble, 2; Laguneta, 2; Miraflores, 2; Palmira, 
1 (all Am. Mus.). [See Addenda, p. 307.] 
Remarks.— In three specimens the dorsal band is black, broad, and 
sharply defined; in two it is obsolete; in all the others it is merely a darken- 
ing of the median line, the hairs being lightly tipped with ochraceous. 
The two specimens from Miraflores (alt. 6200 ft.) and the single specimen 
from Palmira very closely resemble those from La Guneta (alt. 10,300 ft.), 
El Roble, and part of the Salento specimens; one, however, from above 
Salento (alt. 9000 ft.) and one from Salento differ from the others in 
being nearly white below with only a faint yellowish wash. 
Leptosciurus ignitus ignitus (Gray). 
Macroxus ignitus Gray, Ann. and Mag. Nat. Hist. (83), XX, p. 429, Dec. 1867. 
‘Bolivia (Brydges).”’ 
Sciurus cuscinus THomas, Ann. and Mag. Nat. Hist. (7), IX, p. 129, Feb. 1902, 
part. (Charuplaya, Bolivia, alt. 1350 m.). 
Sciurus cuscinus ochrescens THomas, Ann. and Mag. Nat. Hist. (8), XIII, p. 362, 
March, 1914 (Astillero, Bolivia, alt. 2700 mm.). 
L'ype locality.— “ Bolivia” — probably near Yungas, upper Rio Beni, 
which may be regarded as the type locality. | 
Geographic distribution.— Bolivian Andes, at altitudes of about 3500 to: 
9000 feet. 
Description.— Pelage soft, of medium length and fulness. Mamme 
6. Upperparts olive, the hairs minutely tipped with yellow; underparts 
varying (in different specimens from the same locality) from light yellow to 
