306 



top might fall out at the Custom House. I am promised part of a rib 

 and other hones by the gentleman who gave the tooth, and I have 

 some hopes of obtaining a jaw-bone." 



1487. A portion of the crown of the penultimate molar, right side, lower jaw, of 

 the Diprotodon australis : it includes a great part of the posterior trans- 

 verse eminence, which is more than half-worn down, with the posterior 

 talon and a small part of the anterior eminence : the wrinkles of the 

 enamel are fewer, and the perforations more distinct than in the specimen 

 No. 1460, but the size and proportions so closely accord with those of 

 No. 1495, as to leave little doubt of their specific identity. The smooth 

 indentation at the back of the posterior talon plainly indicates the effects 

 of pressure, from long exercise of mastication, against a posterior 

 tooth. 



From the alluvial or newer tertiary deposits in the Darling Downs, 

 S.W. of Moreton Bay, Australia. 



Presented by Lieut. -Col. Sir T. L. Mitchell, C.B. 



1488. A fragment of the spine of a scapula of a large quadruped ; it is between 

 one inch and half an inch in thickness, and two inches in height : the 

 cancellous texture resembles in character that of the femur No. 1489, 

 which was transmitted with this fragment. 



From the alluvial or newer tertiary deposits in the Darling Downs, 

 S.W. of Moreton Bay, Australia. 



Presented by Lieut. -Col. Sir T. L. Mitchell, C.B. 



1489. The shaft of a femur of a large mammiferous quadruped, wanting part of 

 the parietes of the medullary cavity from the fore-part of the distal half 

 of the bone. It is principally remarkable for the extent to which it is 

 naturally flattened from before backwards ; its transverse being to its 

 antero-posterior diameter as two to one ; the greatest length of the 

 specimen is one foot ten inches; its greatest breadth near the upper 

 end is nine inches. Among the known larger quadrupeds the femur 

 presents a similar antero-posterior compression in the Elephant, Mas- 

 todon, and Rhinoceros, but the latter animal is distinguished by a second 



