479 



Fig. 9. Upper view of the same fossil. 

 Fig. 10. Hind view of the same fossil. 



Fig. 11. Outside view of part of right mandibular ramus, with the penultimate and 



antepenultimate molars, of Leptosiagon gracilis, Ow. 

 Fig. 12. Inner view of the same fossil. 

 Fig. 13. Upper view of the same fossil. 

 Fig. 14. Hind view of the same fossil. 



Fig. 15. Section of middle of mandibular ramus of the same fossil. 



PLATE XC. 



Fig. 1. Under view of cranium of Halmaturus brachyurus, Wth. 



Fig. 2. Outside view of part of the left upper jaw and teeth of Procoptodon Push, 

 Ow. 



Fig. 3. Inside view of the same fossil. 

 Fig. 4. Front view of the same fossil. 

 Fig. 5. Back view of the same fossil. 



Fig. 6. Under view of right and left maxillse and teeth of the same young Procoptodon 

 Pusio. 



Fig. 7. Left upper molar series of adult Procoptodon Pusio . 



Fig. 8. Outer side view of fore part of left mandibular ramus, with the premolar 



exposed, of Procoptodon Rapha, Ow. 

 Fig. 9. Inner side view of the same fossil. 



Fig. 10. Back view of the same fossil, showing relation of the premolar (p 3) to the milk- 

 molar, d 3. 



Fig. 11. Upper view of the same fossil: a, section of incisor. 

 Fig. 12. Under view of the same fossil. 



PLATE XCI. 



Fig. 1. Rami and teeth of lower jaw of Procoptodon Pusio. 

 Fig. 2. Outer side view of left ramus and teeth of Procoptodon Pusio. 

 Fig. 3. Inner side view of left ramus aud teeth of Procoptodon Pusio. 

 Fig. 4. Front view of symphysis mandibular and stumps of incisors of Procoptodon 

 Pusio. 



Fig. 5. Working-surface of molars of right mandibular ramus of Procoptodon Pusio. 



PLATE XCII. 



Fig. 1. Rami and teeth of lower jaw of a young Procoptodon Goliah, Ow. 

 Fig. 2. Outer side view of left ramus and teeth of Procoptodon Goiiah, Ow. 



