230 MAESTJPIALIA. 



50062. The greater part of the right ramus of the mandible of a 

 young individual, showing pm. 3, mm. 4, m. 1, and m. 2 in 

 use, and pm. 4 in alveolo ; from Gowrie. 



Presented hy G. F. Bennett, Esq., 1879. 



38755. Part of the left ramus of the mandible of a young indi- 

 vidual, showing m. 1 and m. 2 in use, and i^ emerging 

 from its alveolus ; from Darling Downs. 



Presented by F. iV. Isaac, Esq., 1861. 



M. 3454. The greater part of the mandible of a young individual, 

 showing pm. 3, mm. 4, and i^TT in use, and ^72 in its 

 alveolus ; from Queensland. This specimen was named 

 Macro^us elatus, Owen, MS. 



Presented hy Sir B. Owen, K.C.B., 1883. 



32889. Fragment of the right ramus of the mandible of a young 

 individual, showing mm. 4 ; from Queensland. 



Purchased, 1857. 



32901 . A lower incisor, probably belonging to this species ; from 

 Queensland. Purchased, 1857. 



47854. Two similar specimens ; from Queensland. 



Presented hy Br. George Bennett, 1875. 



Macropus ferragus, Owen \ 



Syn. Pachysiagon ferragus, Owen ^. 

 Leptosiagon gracilis, Owen ^. 



This species, which was originally founded upon a portion of the 

 mandible, appears allied to M. titan, but is of rather larger size, and 

 has the upper true molars with their ridges placed somewhat more 

 obliquely, the hind talon of m. 4 of different form, and the crowns of 

 both upper and true molars of slightly more complex structure. 



Hah. Queensland and New South Wales. 



32895. The hinder portion of the palate, showing the last three 

 true molars of either side : from the Pleistocene of the 

 Condamine Eiver, Queensland. The resemblance between 

 the teeth of this specimen and those of No. 32903 is such 

 as to leave little, if any, doubt as to their specific identity. 

 The length of the space occupied by the three teeth is 

 0,052, against 0,049 in M. titan No. 35959. 



Purchased, 1857. 



1 Pliil. Trans. 1874, p. 784. 



2 Extinct Mammals of Australia, p. 449 (1877). 



3 Phil. Trans. 1874, p. 785. 



