PROFESSOR OWES OX THE FOSSIL MAMMALS OF AUSTILVLIA. 195 



PLATE XVIII. 



Fig. 1. Palatal surface and upper molars, PJiascolomys MitcTieUi. 



Fig. 2. Side Aiew of the same portion of skull. 



Fig. 3. Front new of the same portion of skull. 



Fig. 4. Back "view of the same portion of skull. 



Fig. 5. Side view of the left maxillary, Phascolomys Jlitchelli. 



Fig. 6. Front view of the same portion of skull. 



Fig. 7. Palatal surface and molar teeth of ditto. 



Fig. 8. Outside view of right mandibular ramus oi Phascolomys Thonisoni. 

 Fig. 9. Upper view with grinding-surface of lower molars of the same fossil. 



PLATE XIX. 



Fig. 1. L'pper view of mandible and mandibular teeth, Phascolomys vombafiis. ' 

 Fig. 2. Upper view of mandible and mandibular teeth, Phascolomys platyrhinus. 

 Fig. 3. L'pper ^iew of a portion of the left mandibidar ramus with the last two molars, 

 Phascolomys Krefftii. 



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

 Fig. 5. L'pper -siew of a portion of the left mandibular ramus, Phascolomys Jlifchelli. 

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

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



PU_\TE XX. 



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

 Fig. 2. L'pper 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 oi Phascolomys jjlatyrhinus. 

 Fig. 4. Under ^"iew 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 \iew of the same fossil. 



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



PLATE XXL 



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

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

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

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

 frons. 



