MAMMALS OF NORTHERN COLOMBIA—HERSHKOVITZ 19 
of face and upper part of throat with more yellow. Underparts 
with the usual white pattern. 
NazareT (1 male): A single specimen, without skull, taken in 
May 1941 by Wetmore and Carriker, is slightly paler than the palest 
of the Villanueva series. It may represent an isolated race at the tip 
of the Guajira Peninsula, or simply the continuation of the tendency 
of splendidus to become paler from south to north. 
Remarks.—This subspecies is characterized by a greater uniformity 
in color and pattern over a greater number of specimens than any of 
the other forms considered here. The race shows a marked color 
gradient following geographical lines. From the reddish phase found 
at the mouth of the Cesar the animal becomes progressively paler 
upstream. In the middle Cesar both the reddish and the orangeous 
phases appear. Farther upstream, at the head of the river, the 
squirrels show both the reddish and orangeous phases but in paler 
tones than those lower down. Finally the orangeous individual from 
the tip of the Guajira Peninsula is the palest of all. 
A description of the seasonal change in pelage and color in the 
Middle Cesar series has been given under another heading. 
Specimens examined.—Seventy-five: Puerto Estrella, 3 (U.S.N.M.); 
El Orinoco, Rio Cesar, 39 (U.S.N.M.); Rio Guaimaral, Rio Cesar, 27 
(U.S.N.M.); Villanueva, 5 (U.S.N.M.); Nazaret, 1 (U.S.N.M.). 
SCIURUS GRANATENSIS VARIABILIS I. Geoffroy 
Sciurus variabilis I. Grorrroy, Mag. Zool., Paris, vol. 2, Cl. 1, pl. 4, 1832, 
(For complete synonymies see text references and Allen, 1915.) 
Lectotype.—Adult male, M.N.H.N. No. 534 (No. 307 in type cata- 
log); collected by Plée in 1826. 
Type locality.—Originally said to be either the Antilles, the United 
States, or Colombia. The wooden stand upon which the type is 
mounted bears the legend ‘‘Colombie.’”’ Here restricted to La 
Gloria, right bank of the Rio Magdalena about 45 kilometers above 
the mouth of the Cesar; altitude approximately 45 meters. 
Distribution.—In the Department of Magdalena, the Rio Magdalena 
Valley between the bases of the Cordilleras Oriental and Central, 
from La Gloria south. 
Characters.—Larger, darker, with more black on dorsum than 
granatensis; contrastingly colored black and reddish, underparts 
sharply defined white, basal portion of tail black, terminally reddish 
above, mixed black and red beneath, tip reddish. 
Measurements.—See table 2, page 38. 
Coloration.—The colored figure of the type of variabilis shows poor 
draftsmanship and an unhappy selection and combination of colors. 
Nevertheless, this figure, together with the original description, can 
