337 



Fig. 4. Upper view of a portion of the right mandibular ramus, Phascolomys latifrons. 

 Fig. 5. Upper view of a portion of the left mandibular ramus, Phascolomys Mitchelli. 

 Fig. 6. Upper view of a portion of the left mandibular ramus, Phascolomys parvus. 

 Fig. 7. Outer side view of the same fossil. 



PLATE LIV. 



Fig. 1. Upper view of mandible and mandibular teeth, Phascolomys latifrons. 

 Fig. 2. Upper view of the fore part of the mandible, Phascolomys Krefftii: 2 a, trans- 

 verse section of the incisors. 

 Fig. 3. Upper view of a portion of the mandible of Phascolomys platyrhinus. 

 Fig. 4. Under view of the same fossil : 4 a, transverse section of the incisors. 

 Fig. 5. Side view of fore part of the same jaw. 



Fig. 6. Outer side view of the left mandibular ramus, Phascolomys parvus. 



Fig. 7. Inner side view of the same fossil. 



Fig. 8. Under surface of angular part of the same fossil. 



PLATE LV. 



Fig. 1. Inner side view of the right mandibular ramus, Phascolomys vombatus. 

 Fig. 2. Inner side view of the right mandibular ramus, Phascolomys platyrhinus. 

 Fig. 3. Inner side view of the right mandibular ramus, Phascolomys latifrons. 

 Fig. 4. Inner side view of a portion of the right mandibular ramus, Phascolomys lati- 

 frons. 



Fig. 5. Outer side view of a portion of a left mandibular ramus, Phascolomys Mitchelli. 



Fig. 6. Inner side view of the same fossil : drawn without reversing. 



Fig. 7. Inner side "view of a portion of the right ramus, Phascolomys Thomsoni. 



PLATE LVI. 



Fig. 1. Under view of mandible, Phascolomys platyrhinus. 



Fig. 2. Under view of the left ramus and symphysis of mandible, Phascolomys vom- 

 batus. 



Fig. 3. Under view of the right ramus and symphysis of mandible, Phascolomys latifrons'. 



Fig. 4. Under view of the symphysis of mandible, Phascolomys Krefftii, 



Fig. 5. Under view of the hind part of the left ramus of mandible, Phascolomys Krefftii. 



Fig. 6. Back view of the hind part of the left ramus of mandible, Phascolomys parvus. 



Fig. 7. Upper view of the same part of the fossil. 



Fig. 8. Transverse section of lower incisors, Phascolomys platyrhinus. 



Fig. 9. Transverse section of lower incisors, Phascolomys latifrons. 



