252 Bulletin American Museum of Natural History. [Vol. XXXIV, 
dark red from base to tip, both above and below; upper arms and thighs 
deep red like the upperparts; fore and hind feet orange red. 
“Tn a second specimen (topotype) the red of the flanks and limbs is still 
darker, the hairs of the back subapically narrowly ringed with black, thus 
distinctly darkening the median dorsal area, which is extended over the 
proximal third of the tail. 
“Total length (type), 484 mm.; head and body, 245; tail vertebra, 189; 
hind foot, 56; topotype (o ad.), 422, 238, 184, 60. The skull has been 
temporarily mislaid; measurements of it may be given later.” — Allen, l. c. 
Specimens examined, 2.— Colombia: Banco, Rio Magdalena, near 
mouth of Rio Cesar, 2, type and topotype (Am. Mus.). 
Remarks.— Similar in pattern of coloration to M. saltuensis bonde, but. 
the pelage is coarse and hispid instead of long and soft, and the red is much 
darker and more vivid. The type locality is at the mouth of the Rio Cesar, 
which has its source in the Sierra de Santa Marta. Doubtless squirrels of 
the saltuensis group will be found at favorable localities throughout the 
course of the Rio Cesar, the mouth of which is in the humid tropical, while 
the region about Bonda is arid, the change in the character of the pelage 
and the intensification of the color in magdalene being doubtless due to its 
more humid environment. 
Mesosciurus pyrrhinus ( 7homas). 
Sciurus variabilis Tscuupr (not of Geoffroy), Fauna Peruana, I, Therologie, pp. 
155, 160, pl. x— Atien, Mon. N. Amer. Rodentia, 1877, p. 768, part, only the 
reference to Tschudi Tuomas, Proc. Zool. Soc. London, 1893, p. 337 (Chanchamayo, 
Peru). 
Sciurus pyrrhinus Tuomas, Ann. and Mag. Nat. Hist. (7), II, p. 265, Sept. 1898. 
Type locality.— Garita del Sol, Vitoc, Peru. : 
Geographic distribution.— Eastern slope of the Andes in central Peru, 
latitude 9° to 12° south (Tschudi), from the lower edge of the cedar region 
to the upper forest region, about 2000-5000 feet (Tschudi). 
Description.— Similar in size, cranial and external features to Meso- 
sciurus saltuensis bonde, but much darker red above, and either white or 
red or patchy red and white below. 
Pelage long, thick and soft. Superficially dark red above from nose to 
end of tail, the hairs annulated narrowly on apical half with red and black, 
giving a grizzled red-black general effect; basal half of tail with more black 
than the apical half; underparts bright red with small irregular patches of 
white on throat, axille, lower breast and inguinal region; tail below annu- 
lated with three bands of black and two of rufous, the outer one wider and 
broadly fringed with red. 
