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PLATE LXI. 



Fig. 1. Outside view of part of the right mandibular ramus and teeth, Phascolomys 



(Phascolonus) gigas. 

 Fig. 2. Inside view of part of left ramus and teeth of the same mandible. 

 Fig. 3. Working-surface of the right molars of the same mandible. 

 Fig. 4. Working-surface of the right mandibular ramus of a larger Phascolomys gigas. 



PLATE LXII. 



Fig. 1. Upper view of the lower jaw and teeth, Phascolomys (Phascolonus) gigas. 



Fig. 2. Anterior fractured surface of right manus of the same jaw. 



Fig. 3. Posterior fractured surface of right manus of the same jaw. 



Fig. 4. Posterior fractured surface of another mandibular ramus, Phascolomys gigas. 



PLATE LXIII. 



Fig. 1. Hind view of mandible, Phascolomys (Phascolonus) gigas. 



Fig. 2. Hind view of mandible, Phascolomys latifrons. 



Fig. 3. Portion of left mandibular ramus of a large Phascolomys gigas. 



Fig. 4. Upper surface of the same fossil. 



Fig. 5. Portion of left mandibular ramus, Phascolomys parvus. 



Fig. 5. Upper surface of the same fossil. 



PLATE LXIV. 



Fig. 1. Upper surface of fore part of mandible, Phascolomys {Phascolonus) gigas). 

 Fig. 2. Under surface of the same fossil. 



Fig. 3. Back view, showing roots of incisors («') and interior molars (d 3 ) of the same fossil. 

 Fig. 4. Under surface of fore part of mandible, Phascolomys vombatus. 



PLATE LXV. 



Fig. 1. Inner side view of the fore part of a right mandibular ramus and teeth, Phasco- 

 lomys (Phascolonus) gigas. 

 Fig. 2. Outer side view of incisor of the same fossil. 

 Fig. 3. Working-surface of the same incisor. 

 Fig. 4. Transverse section of the same incisor. 

 Fig. 5. Outer side view of the same fossil (without reversing). 



Fig. 6. Upper view of a portion of the left mandibulary ramus and last four molars of a 

 smaller Phascolomys gigas. 



All the figures are of the natural size : the symbols and letters of reference are 



explained in the text. 



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