PLATE III. 



Genus — Nannosuchus. 

 Fig. 

 1. Upper view of skull of Nannosuchus gracilidens. 

 3. Crowns of four teeth, a, b, c, d, in fig. 1, magnified 2 diameters. 



Genus — Theriosuchus. 



3. Upper view of skull of Theriosuchus pusillus. 



4. Under view of the same skull. 



5. Side view of facial part of the same skull. 



6. Crowns of five teeth, c, 6, c, d, e, in fig. 5, magnified 3 diameters. 



7. Upper view of cranium and inner view of left maxillary, Theriosuchus pusillus. 



8. Frontal bone, Theriosuchus pusillus. 



9. Part of left maxillary, ib. 



10. Part of right maxillary, ib. 



11. Left maxillary, inner side view, ib. _ 



12. Right maxillary, young individual, ib. 



13. Right maxillary, young individual, ib. 



14. Left dentary, side view, mature individual. 



15. Dentary and angular parts of mandible, under view, ib. 



16. Dentary and fragments of mandible, inner side view, ib. 



17. Pore part of right dentary, side view, ib. 



The figures are of the natural size save where otherwise expressed. 

 Prom the Middle Purbeck ; in the British Museum. 



