46 



NORTH AMERICAN FAUNA 68 



Figure 23. — Complete juvenile dentition of a female aged 2 to 3 months, 

 weight 8.75 lb. (3.9 kg.), length 720 mm., captured 12 March 1959. The 

 permanent incisors have all erupted and the permanent first postcanines 

 are erupting and displacing their fetal antecedents. The second and third 

 pairs of deciduous postcanines are well developed. No indication of molar 

 eruption is visible but the tips of the erupting canines are visible (arrow). 

 (KWK 66-11-11) 



upper case = permanent tooth, (I=incisor; C = canine; PC=postcanine; M: 

 molar) . 



Newborn (fig. 24 and fig. 22) : 



. l+(2) _1^ (3) _ 2+ (5) 



^ (2) ^1 2+(l) - 4+(2) 



Total on one side, 4 + (9) ; total teeth, 26. 



Juvenile (mixed or transitional) (fig. 23) : 



13 C (1) PC l+(2) M (1) 4+(4) 



i_^ c J_ pc _2_ - _ 3 



i - c 1 pc 2 - 3 



12 C (1) PC l+(2) M (2) 3 + (5) 



Total on one side, 13+ (9); total teeth, 44. 



