224 MAESUPIALIA. 



46918. The nearly entire right ramus of the mandible of a nearly 

 adult individual; from the Pleistocene of Kerban, near Men- 

 doran, New South Wales. All the teeth are shown with the 

 exception of pm. 4, which has been shed, but m. 4 is not 

 fully protruded. The specimen agrees very closely in 

 structure with the mandible of M. rohustus, but accords in 

 relative size with the maxillse of the present form. 



Presented by W. L. E. Gipps, Esq., 1875. 



32302. Part of the right ramus of the mandible, showing the last 

 three true molars ; from a cave in the Wellington Yalley. 



Purchased, 1857. 



32299. Part of the left ramus of the mandible, containing the first 

 three true molars ; from the same locality. 



Same history. 



40010. The anterior portion of the left ramus of the mandible, 

 containing the incisor, pm. 4, m. 1, and m. 2 ; from Queens- 

 land. This specimen agrees precisely with No. 46918 ; 

 the premolar resembles in structure the corresponding 

 tooth of M. rohustus, but is longer than mTl. 



Presented by Sir D. Cooper, Bart., 1866. 



32887. The greater part of the right ramus of a mandible probably 

 belonging either to a small individual of the present form, 

 or to a large one of M. robustus ; from the Pleistocene of 

 the Condamine Eiver, Queensland. Purchased, 1857. 



Macropus cooperi (Owen ^). 

 Syn. Osphranter cooperi, Owen ^, 



This imperfectly known form is apparently allied to M. robustus, 

 but is distinguished both from that species and M. alius by the 

 much slighter downward inclination of the alveolar border of the 

 mandibular diastema in advance of the premolars. 



Hab. Queensland. 



32886. The anterior portion of the left ramus of the mandible of 

 {Fig.) an old individual, containing the first three cheek-teeth ; 

 from the Pleistocene of the Condamine Eiver, Queensland. 

 This specimen is the type, and is figured by Owen in the 

 ' Phil. Trans.' 1874, pi. xxiv. figs. 17, 18, and also in the 

 ' Extinct Mammals of Australia,' pi. Ixxxiv. figs. 17, 18. 



Purchased, 1857 



1 Phil. Trans. 1874, p. 2G1. — Osphranter. . ^ Loc. cit. 



