310 PROFESSOR OWEN ON SOME SPECIES OF THE EXTINCT GENUS NESODON. 
Description of the Plates. 
PLATE XV. 
Nesodon ovinus. 
Fig. 1. Side view of a portion of the skull. 
Fig. 2. Upper view of the same. 
Fig. 3. Under view of the same. 
Fig. 4. Front view of the right premaxillary and incisor teeth. 
PLATE XVI. 
Nesodon ovinus. 
Fig. 6. Portion of the left upper maxillary bone, with the roots of the teeth exposed. 
Fig. 6. Inside view of the right ramus of the lower jaw. 
Fig. 7. Outline of the same, with the implanted parts of the teeth exposed. 
Fig. 8. Grinding surface of the teeth. 
Fig. 9. Under surface or border of the same ramus. 
PLATE XVII. 
Nesodon imbricatus. 
Fig. 10. Grinding surface of two molars, right side upper jaw. 
Fig. 11. Part of the right ramus of the lower jaw. 
Fig. 12. Part of the left ramus of the same jaw with the roots of the teeth exposed. 
Fig. 13. Transverse section of the right ramus of the same jaw, showing the implanted 
part of the anterior lobe of the first true molar. 
Fig. 14. The grinding surface of the teeth in fig. 11. 
PLATE XVIII. 
Figs. 15-20. Portions of lower molar teeth of the Nesodon Sulivani. 
Figs. 21-23. Portion of an upper molar tooth of the Nesodon magnus. 
The figures, letters and symbols, are explained in the text. 
