alas Bulletin American Museum of Natural History... [Vol. XXXIV, 
Mesosciurus hoffmanni quindianus (Allen). 
Guerlinguetus hoffmanni quindianus ALLEN, Bull. Amer. Mus. Nat. Hist., XX XIII, 
p. 587, Oct. 8, 1914. 
Type locality Rio Frio, western slope of Central (or Quindio) Andes; 
altitude 3500 feet. 
Geographic distributeon.— Central Andes of Colombia, in the region of 
Salento and Laguneta, from about 3500 feet to about 10,000 feet. 
Description.— “ Upperparts with the mid-dorsal region black, extending 
(in different specimens) from the nape or shoulders to the base of the tail; 
rest of the upperparts finely grizzled yellowish and black varying (in differ- 
ent specimens) to ochraceous and black; outer surface of limbs and feet like 
the flanks; underparts ochraceous orange varying (in different specimens) 
to orange red; inside of limbs like the ventral surface ; tail above black 
at the extreme base (for about 30 to 50 mm.), then orange (pale orange to 
orange red in different specimens) and tipped with black (usually for the 
terminal 40 to 50 mm.); under surface of tail grizzled fulvous and black, 
with black base and tip, and broadly edged with orange, the hairs individu- 
ally black at base, then broadly banded with orange, followed by a broad 
band of black, and a very broad terminal band of orange; ears medium, 
clothed with very short bairs similar in color to the adjoining pelage. 
“Total length (collector’s measurements), 397 mm.; head and body, 215; 
tail vertebrae, 182; hind foot, 55. Six topotypes, total length, 400 (375- 
440); head and body, 221 (202-230, 1 at 242); tail vertebree, 179 (146-198) ;s 
hind foot, 56 (53-58). Eleven specimens from Salento (altitude 9000 feet), 
total length, 395 (390-418); head and body, 218 (205-226): tail vertebrae, 
176 (162-203); hind foot, 56 (54-58). 
“Skull (type), total length, 56; zygomatic breadth, 31.5 ; interorbital 
breadth, 16; breadth of braincase, 24: length of nasals, 16.4; maxillary 
toothrow, 8.6. Four topotypes, total length, 54.4 (53-55); -zygomatic 
breadth, 31.3 (30-32); interorbital breadth, 16.1 (15.5-17); breadth of 
braincase, 23.4 (22.8-23.8); length of nasals 16 (15.5-16.5); maxillary tooth- 
row, 8.2 (8-8.5). Salento and Laguneta skulls have practically the same 
measurements, the skulls from these four localities exceeding in size those 
of true hofmanni from any of the numerous localities in Central and South 
America from which series of specimens have been received.” — Allen. I. c. 
Specumens examined, 15.— Colombia: Rio Frio, 6 (type and 5 topo- 
types); Salencio (Névita trail), 1: Salento, 2; Laguneta, 5; Passad e 
Torres, 1 (all Am. Mus.). [See Addenda, p. 308.] 
Remarks.— The Laguneta series, from near Quindio Pass, is aberrant, 
