ANIMAL DENTISTRY. 



51 



CANINES. 



The canine teeth are frequently referred to as being rep- 

 resented in youth by temporary predecessors. This claim 

 cannot be accepted as entirely correct. The needle-like ca- 

 nines, occasionally observed in three-year-old colts, must be 

 regarded as a freak of perverted dental evolution rather 

 than as a part of the normal economy. 



3 



sr"^' 



y 



t^il-i I 



^\ 



'^•^•-r. 



'-^S^ 



;■' 



A 



....J 



Fig. 35- 

 Temporal"}' Incisors of the Colt. 



3. Inferior incisors at birth. 



4. Inferior incisors at ten weeks. 

 2. Inferior incisors at four months. 

 I. Inferior incisors at seven months. 



THE OX. 



Central Incisors* — Erupt at birth, become prominent at 

 one month and shed at one and a half years of age. 



Lateral Incisors — Erupt at birth, gain the level of the 

 arcade at one month and shed at two and a half years. 



*Lower jaw only. 



