MAMMALS OF NORTHERN COLOMBIA—-HERSHKOVITZ 9 
form (like meridensis, g. v.) grades into the larger granatensis of the 
lowlands through geographically intermediate series. 
Guerlingeutus candalensis Allen (1914, p. 590). This form is too 
slightly distinguished from griseimembra to warrant its ever being 
separated from it specifically. 
There is appended to this paper a supplementary list of the South 
American forms of granatensis that may be recognized. 
COLOR PATTERNS AND INDIVIDUAL VARIATION (TABLE 1) 
Among the individuals of the species herein described there are 
four basic color patterns apparent on the back and sides: 
(1) A more or less uniformly reddish? color phase. 
(2) A more or less uniformly orangeous? color phase. 
(3) An agouti pattern. Results from a mixture of annulations of reddish 
or orangeous with black on the individual hairs. 
(a) Pale agouti—with the reddish or orangeous predominating; many 
of the hairs may lack black bands. 
(b) Dark agouti—with the black predominating; many of the hairs may 
be entirely black. 
(4) Contrasting patterns. 
(a) With either reddish or orangeous on anterior portion of the back 
and the agouti on posterior portion (and base of tail). 
(b) As in (a) but with black instead of agouti on rump (and base of tail). 
(c) As in (a) or (b) but with the agouti, or black, of rump extending 
anteriorly for varying lengths as a median dorsal band and some- 
times even passing forward onto the crown as a cap; the reddish 
or orangeous of sides, and especially the shoulder regions, are 
contrastingly defined. The resulting pattern may be designated 
as either 4ab (contrasted with agouti) or 4ac (contrasted with 
black). 
Most individuals conform closely to one of the above patterns. 
Some specimens show a combination of two or more of these patterns 
either in the form of some distinct design or some irregular markings 
or mottling, while the pattern of others may lie somewhere between 
two of the basic categories. In practically all populations, however, 
one or two closely intergrading patterns dominate and the series may 
be classified accordingly (table 1, p. 34). 
The individual hairs of the back and sides may be unicolor to 
the roots or with gray bases, or they may be ringed with from two to 
five color bands. Underparts vary from entirely white on belly, 
chest, neck, throat, forelegs, and thighs to entirely orangeous or 
reddish. Tail, on upper surface, may be uniformly orangeous or 
reddish throughout its length or with basal portion agouti or black; 
the tip or terminal portion may be slightly darker than the bright 
middle portion, to entirely black; ventral side of tail may be uniformly 
2 As used herein, ‘‘ reddish”’ covers the red-yellow tones shown in Ridgway, where the red appears to 
be dominant, and “ orangeous’’ where the yellow appears dominant. 
729056—47——2 
