156 MARSUPIALIA. 



39272. The anterior portion of the mandible, showing all the cheok- 



(Fig.) teeth and the broken bases of the incisors ; from the 



Pleistocene of Queensland. Figured by Owen in the 



' Phil. Trans.' 1872, pi. xx. figs. 3-5, and in the ' Extinct 



Mammals of Australia,' pi. liv. figs. 3-5. 



Presented by Edward Hill, Esq., 1863. 



M. 3450. The symphysis and greater portion of the left ramus of 

 the mandible ; from Queensland. 



Presented ~by Dr. George Bennett. 



Phascolomys thomsoni, Owen '. 



This species agrees in size with P. wombat ; the general mandi- 

 bular characters are those of P. platyrJiinus, but the symphysis is 

 less produced backwards ; the length of tho mandibular series of 

 cheek-teeth is 0,050. The cranium is unknown. 



Hob. Queensland. 



38608. The imperfect right ramus of the mandible ; from the Pleis- 

 (Fig.) tocene of Darling Downs, Queensland. This is the type 

 specimen, and is figured by Owen in the ' Phil. Trans.' 1872, 

 pi. xvii. figs. 8, 9, and pi. xxi. fig. 7, as well as in the 

 ' Extinct Mammals of Australia,' pi. li. figs. 8, 9, and 

 pi. Iv. fig. 7. Presented by Sir D. Cooper, Bart., 1864. 



Phascolomys parvus, Owen 2 . 



This is the smallest species, the length of the series of mandibular 

 cheek-teeth being 0,036 ; the mandibular characters are very 

 similar to those of the preceding species. The cranium is unknown. 

 This form may be merely a smaller race of P. thomsoni. 



Hob. Queensland and New South Wales. 



32893. The slightly imperfect left ramus of the mandible, showing 

 (Fig.) all the teeth; from the Pleistocene of the Condamine 

 River, Queensland. This is the type specimen, and is 

 figured by Owen in the ' Phil. Trans.' 1872, pi. xx. figs. 6-8, 

 and in the ' Extinct Mammals of Australia,' pi. liv. figs. 

 6-8. Purchased, 1857. 



32899. The greater part of the left ramus of the mandible, showing 



(Fig.) all the teeth except mTi; from the Condamine lliver. 



Figured by Owen in the ' Phil. Trans.' 1872, pi. xix. figs. 



1 Phil. Trans. 1872, p. 192. 



2 Ibid. p. 193. 



