ANIMAL DENTISTRY. 



221 



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*g^B>^t^,j^ 



Fig. 149. 

 Dental Teratoma and Concha! Fistula. (Williams), 



1. Mouth of the conchal fistula. 



2. Bottom of the fistulous tract. 



3. Guhernaculum dentis. 



4. 9. Bony plates from the temporal hone. 



5. The tooth. 



6. External auditory meatus. 



7. Wall of the fistulous tract. 



8. Petrous temporal bone. 



10. Zygoma. 



11. Temporo-maxillary articulation. 



