1915.] Allen, Review of the South American Sciuride. . 249 
of 5000 to 8000 feet. Rare at 8000 feet, and probably not ranging much 
above this altitude. | 
Description.— Similar to M. saltuensis bonde (see below) but averaging 
much darker. Size and pattern of coloration exactly similar. Pelage 
thicker and softer, particularly on the ventral surface. (For measurements 
see Table V, p. 248.) 
Specumens examined, 27.— Colombia: Pueblo Viejo, 2, type and para- 
type (Mus. Comp. Zodl.); San Sebastian, 1, paratype (Mus. Comp. Zodl.); 
El Libano (5500 ft.), 1 (Am. Mus.); Valparaiso (4500 ft.), 8 (Am. Mus.); 
Minca (2000 ft.), 8 (Am. Mus.); Cincinnati, 7 (Pittsburgh Mus.). 
Remarks.— The Minca specimens are not typical; the locality is at the 
“lower border of the main mountain forests.’ ‘Two series of specimens 
are labeled as having been collected at Minca, one of 8 specimens by M. A. 
Carriker, Jr., and one of 7 specimens by H. H. Smith. The Carriker speci- 
mens and one of the Smith specimens resemble typical saltwenszs much more 
than they do bonde of the more arid coast lowlands, but 6 of the Smith 
specimens are almost typical bonde. Although all of both series are labeled 
Minca, probably they were really collected at different points varying con- 
siderably in elevation, Minca being “at the lower border of the main moun- 
tain forest, which here adjoins dry forest and open grass lands” (Smith). 
Mesosciurus saltuensis bonde (Allen). 
Plate VIII, Figs. 7, 8; Plate XIII, Figs. 15, 16. 
Sciurus variabilis Auston, Proc. Zool. Soc. London, 1878, p. 665, part, the Santa. 
Marta, Colombia, specimens. 
Sciurus variabilis variabilis Banas (not of Geoffroy), Proc. Biol. Soc. Washington 
XII, pp. 183-185, Nov. 16, 1898; Proc. New England Zodl. Club, I, p. 91, Feb. 23 
1900 (Santa Marta region, Colombia, alt. 500-600 ft.). Sciurus vartabilis I. Geoffroy, 
is here wrongly restricted to the ‘form of the coast of Colombia, in the Santa Marta 
District.” 
Sciurus saltuensis bonde ALLEN, Bull. Amer. Mus. Nat. Hist., XII, pp. 2138-217. 
Dec. 20, 1899; ibid., XX, pp. 432-435, Nov. 28, 1904. 
Type locality.— Bonda, altitude 200 feet, Santa Marta, Colombia. 
Geographic distribution The arid coast region of the Santa Marta 
district of Colombia, north of the Sierra de Santa Marta, from sea level to 
about 2000 feet elevation. 
Description.— Pelage long and soft. Two distinct seasonal pelages, 
differing in coloration. 
General color of upperparts, in the full breeding pelage, including the 
outer surface of limbs and tail, deep red varying in different specimens from 
