1915.| Allen, Review of the South American Sciuride. 203 
Leptosciurus pucheranii caucensis ( Nelson). 
Sciurus (Guerlinguetus) caucensis Neuson, Bull. Amer. Mus. Nat. Hist., XII, 
p. 79, April 14, 1899. 
Sciurus medellinensis THomas, Ann, and Mag. Nat. Hist. (7), VI, p. 366 (in text), 
Oct. 1900. 
Type locality.— Rio Lima, near San Antonio, Western Andes, Colombia; 
altitude 6000 feet. 
Geographic distribution.— Known only from the vicinity of the type 
locality. 
Description.— Upperparts dark reddish brown, brightest on the outside 
of the shoulders and fore limbs, with an indistinct darkening along the 
middle of the back, quite different from the well-defined black median stripe 
of the northern forms, particularly salentensis and pucherani; sides of the 
nose distinctly reddish instead of gray as in the other forms; underparts 
heavily washed with reddish buff, deepening on the breast to yellowish 
rufous; tail dark chestnut red grizzled with black and edged with white. 
Total length (3 specimens, type and 2 topotypes, collector’s measure- 
ments), 300 (288-313) mm.; head and body, 155 (140-160); tail vertebree, 
147 (144-148); hind foot (with claws), 43 (42-44). Skull (type and topo- 
type), total length, 40.8 (40.6, 41); zygomatic breadth, 23.8 (23.5, 24); in- 
terorbital breadth, 13.9 (13.8, 14); breadth of braincase, 19.9 (19.8, 20): 
length of nasals, 11 (11, 11); diastema, 9.5 (9, 10); maxillary toothrow, 
6.8 (6.8, 6.8). 
Specimens examined, 8.— Colombia: Rio Lima, 4, type and topotype 
(Am. Mus.) and 2 topotypes (Br. Mus.); Parvas, Western Andes, 4 (Br. 
Mus.). 
Remarks.— In L. pucheranii caucensis the upperparts are more strongly 
suffused with red than in any of the other forms of the group, especially the 
fore limbs and the sides of the nose, while the underparts are much deeper 
yellow, approaching orange yellow on the breast. 
In 1900 this subspecies was. referred by Thomas (J. c.) to Gray’s medelli- 
nensis, but these two forms prove to represent the two most diverse phases 
of the group, especially in respect to the coloration of the ventral surface. 
Leptosciurus pucheranii salentensis (Allen). 
Guerlinguetus pucheranit salentensis ALLEN, Bull. Amer. Mus. Nat. Hist., XX XIII, 
p. 587, Sept. 8, 1914. 
Type locality— Near Salento, Central Andes, Colombia; altitude 
9000 feet. 
