156 MAESTJPIALIA. 



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



{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 Br. George Bennett. 



Phascolomys thomsoni, Owen \ 



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

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

 less produced backwards ; the length of the mandibular series of 

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



Eab. 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^ 



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. 



Eab. 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 

 Eiver, 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 tbe left ramus of the mandible, showing- 



{Fig.) all the teeth except i^^ ; from the Condamine River. 



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



1 Phil. Trans. 1872, p. 192. 



2 Bid. p. 193. 



