ALLEN : MAMMALIA : FELID/E. 1 69 



and everywhere much grayer (less brownish and without fulvous cast) ; 

 ears with distinct markings at base and tip; upper lip with only a trace 

 of the dark mark below w^hiskers ; lips and chin whiter ; light band on 

 under eyelid much broader and purer. Compared with subspecies /^<7;'- 

 soui Thomas, the general color is much paler and grayer, the ear and face 

 markings much more distinct, the tip of the tail dusky. 



''Measurements. — (From dry skins). Total length 2015 ; tail vertebrae 

 670. 



'' Cranial Meastirements. — Type specimen (j* young adult) from base 

 of Andes. Basal length 168; occipito-nasal length 177; zygomatic breadth 

 135; postpalatal length 86; interorbial breadth 36; upper carnassial 

 24.3." (Merriam, /. c, pp. 598-600.) 



Through the kindness of Dr. Merriam I am able to compare his type 

 specimen (No. 108693, U. S. Nat. Mus.), skin and skull, with specimens 

 of pearsoni from the Coy River. As shown by the skull, it is a young 

 adult (said by Dr. Merriam to be a male), and the cranial differences be- 

 tween this skull and those of pearsoni pointed out by Dr. Merriam are 

 sustained by further comparison with Rio Coy skulls, as the greater eleva- 

 tions of the frontal region and greater interorbial breadth of the Rio Coy 

 specimens in comparison with the type skull of patagonica, and also the 

 greater width and more abrupt posterior termination of the nasals. The 

 teeth are much larger in pearsoni, the upper carnassial (p±) having a 

 length of 26.5 mm. as against 24 in patagonica, and they are quite differ- 

 ent in form ; while the body of pi in pearsoni is much broader, its 

 transverse diameter at the front of the tooth is the same as in pafagonica, 

 owing to the much greater relative development of the deuterocone, which 

 is also more pointed and more sharply set off from the body of the tooth. 

 In other words, as said by Dr. Merriam (/. c., p. 580), the inner tubercle 

 or deuterocone is "largest and most distinct in a young male Felis puma 

 from Santiago, Chile," while it is "nearly obsolete" in pearsoni ivova the 

 coast region of Patagonia, "the inner side of the front part of the tooth 

 sloping down [in pearsoni^ to the inner root very gradually." The last 

 cusp on pi is greatly reduced in pafagojiica as compared wnth the same 

 feature in pearsoni. Also the last upper molar in pafagonica is less than 

 one half the size of the same tooth in pearsoni. There are thus very good 

 cranial and dental characters to separate the two forms, apparently even 

 specifically. 



