MAMMALS OF NORTHERN COLOMBIA—HERSHKOVITZ 17 
are mottled with the orangeous and reddish colors, others are either 
reddish or orangeous with hairs of rump, nape, and crown annulated 
with black (4a, see p. 9), still others with the annulated hairs of 
rump extending forward as a weak median dorsal band (4ac). Basal 
portion of tails like rump, remainder, on upper surface, orange-chrome 
or orange-rufous to mars orange; hairs of undersurface with lighter 
basal portions comparatively narrow and sometimes with narrow black 
subterminal bands. Underparts as usual but one specimen with the 
white of the thighs produced downward as a line for the entire length 
of the foreleg and continued as a white fringe on the outer side of the 
foot; the feet themselves are haired white on the dorsal surface for 
half their distal length; the soles, except for a narrow inner portion, 
are unpigmented. 
Ex Satapo (10 males, 10 females): In the main, agree with the 
above but show greater extremes of variability. Here the tendency 
is to throw into sharper relief the combinations of the two color 
phases and of the various color patterns. Some of the specimens 
are quite like the topotypes, others merge into the series of saltwensis 
from Pueblo Bello, and others agree with splendidus from the middle 
Rio Cesar. In one specimen, the tail, on the ventral surface, is 
broadly bicolor; the tails of two others whose body colors conform 
roughly to pattern 4ac (p. 9) are distinctly tricolor. 
Remarks.— Gradation between such extremes as the large red 
squirrel of the Cesar (splendidus) and the smaller blackish one of the 
Sierra Nevada (saltuensis) is clearly demonstrated by the geographi- 
cally intermediate agricolae. 
Specimens examined.—Thirty-seven. Colonia Agricola de Cara- 
colicito, 17 (U.S.N.M.); El Salado, 20 (U.S.N.M.). 
SCIURUS GRANATENSIS SPLENDIDUS Gray 
Sciurus splendidus Gray, Ann. Mag. Nat. Hist., vol. 10, p. 263, 1842. 
Sciurus saltuensis magdalenae ALLEN, Bull. Amer. Mus. Nat. Hist., vol. 33, p. 
593, 1914 (El Banco, Rio Magdalena). 
Mesosciurus saltuensis magdalenae ALLEN, Bull. Amer. Mus. Nat. Hist., vol. 34, 
p. 251, 1915. 
Sciurus splendidus, THomas, Ann. Mag. Nat. Hist., ser. 10, vol. 2, p. 590, 1928 
(S. saltuensis magdalenae=S. splendidus Gray). 
Holotype.-—Specimen of unknown sex and habitat, from the col- 
lection of the Museum of the Earl of Derby and now preserved in 
the Liverpool Free Public Museum. 
Type locality—Unknown. Here fixed on the banks of the Rio 
Cesar near its confluence with the Magdalena. Determination based 
on the identification by Thomas of a squirrel from the Rio Cesar 
“‘as perfectly representative of [splendidus],’’ and on considerable 
other material from the Cesar Valley. 
729056—47——3 
