REVISION OF THE PUMAS 599 



black hairs, the median dorsal region from top of head to end of tail 

 suffused with buffy ; belly buffy gray, the hairs much longer than on 

 the back ; pectoral and inguinal regions soiled whitish ; throat gray ; 

 chin and lips white, the posterior part of upper lip and cheeks suffused 

 with buff; patch at base of whiskers gray (instead of black) ; rest of 

 face gray, except a buffy streak above and below the eye ; backs of 

 ears gray, with apical third and a faint basal band dusky ; feet buffy 

 gray ; tail pale buffy fulvous above, ash gray below, with only the ex- 

 treme tip dusky. 



Cranial characters. — Skull massive, elongate; facial and frontal 

 regions low and narrow ; interorbital region narrow ; nasals rather 

 broad posteriorly and obliquely truncate ; sagittal crest low, contin- 

 uous to frontal shield ; bullae rather large ; postpalatal notch broad ; the 

 palatal margin nearly straight ; presphenoid normal. Canines large 

 (the upper ones 14.5 mm. in diameter) ; crowns of premolars and 

 carnassials long ; upper molar small (as usual in the group) ; inner 

 cusp (protocone) of upper carnassial very small. Compared with the 

 skull of JF. puma from Santiago, Chile, the following tooth differ- 

 ences are conspicuous : crown 2d upper premolar larger and thinner ; 

 crown of upper carnassial longer, with inner tubercle greatly reduced ; 

 upper molar small (less than half the size of this tooth in puma') ; 2d 

 lower premolar smaller (decidedly less swollen) ; lower carnassial de- 

 cidedly larger. 



Compared with an old male concolor from Sao Paulo, Brazil, the 

 facial and frontal regions are very much lower ; frontals flatter ; bullge 

 smaller ; presphenoid narrower ; sphenoid suture distinct ; postpalatal 

 notch broader ; sagittal crest present ; under jaw more massive, the sym- 

 physis much longer ; canines much larger ; crown of second upper pre- 

 molar much longer and narrower ; crowns of upper and lower carnas- 

 sials (particularly the lower) decidedly longer ; crowns of lower 

 premolars longer, the 2d much more swollen posteriorly. 



Re?>iarks. — Compared with the skin of a head of I^. puma from 

 Santiago, Chile, the color of the corresponding parts in patagonica is 

 lighter and everywhere much grayer (less brownish and without fulvous 

 cast) ; ears with distinct dark markings at base and tip ; upper lip with 

 only a trace of the dark mark below whiskers ; lips and chin whiter ; 

 light band on under eyelid much broader and purer. Compared with 

 subspecies pearsoni Thomas, the general color is much paler and 

 grayer, the ear and face markings much more distinct, the tip of tail 

 dusky. 



Measurements, — (From dry skin.) Total length 2015 ; tail verte- 

 brae 670. 



