289 



Fig. 1 b. Side view of crown of the same tooth. 

 Fig. 2. Front view of the same tooth. 



Fig. 3. Outer side view of the right upper molars of Nototherium Mitchelli (male"?). 

 Fig. 4. Grinding-surface of the same teeth. 



Fig. 5. Grinding-surface of the right upper molars of Nototherium inerme. 



Fig. 6. Outer side view of a portion of the right maxilla, with three molars (d *,m\,m a) 



in situ, of Nototherium Mitchelli (old male V). 

 Fig. 7. Grinding-surface of the same molars. 



Fig. 8. Front view of an upper molar (m i), with the two anterior roots exposed. 



All the figures are of the natural size. 



PLATE XLIV. 



Fig. 1. Outer side view of right lower molars of Nototherium Mitchelli (male); the 



worn crowns of d 3 and d \ are restored in outline. 

 Fig. 2. Grinding-surface of the last three teeth of the same jaw, with outlines of that 



of d s and d 4. 



Fig. 3. Grinding-surface and parts of right lower molars of Nototherium Mitchelli 

 (female %). 



Fig. 4. Outer side view of the last three lower molars (m i, m 2, m 3), with the mutilated 



hinder half of the second (d 4), of Nototherium Victories. 

 Fig. 5. Grinding-surface of the same teeth (of d 4 only the hinder half is preserved). 

 Fig. 6. Inner side view of the same teeth. 



Fig. 7. Back view of the penultimate lower molar, with the hind fang exposed in situ, 



of Nototherium Mitchelli. 

 Fig. 8. Roots and remnant of crown of a much-worn lower molar of Nototherium 



Mitchelli. 



All the figures are of the natural size. 

 PLATE XLV. 



Fig. 1. Portion of mandible with three last grinders (m 1, 2, 3) of Nototherium Mitchelli ; 



inside view : nat. size. 

 Fig. 2. Outside view of the grinders of the same jaw. 

 Fig. 3. Upper view or working-surface of the same grinders. 



Since the foregoing pages were in type, the Trustees of the British Museum have 

 received, as a Donation from His Royal Highness the Duke of Edinburgh, K.G., the 

 specimen which forms the subject of the above Plate, The fossil, obtained by His Royal 

 Highness in the Province of Queensland, Australia, is part of the collection of interesting 

 and instructive specimens brought home from the Circumnavigatory Voyage of Her 



25 



