MACEOPODIDiE. 



233 



character with pm. 4 of the following mandibles, with 

 the corresponding teeth of which the true molars also agree 

 in size and structm^e. 

 Presented by the Trustees of the Australian Museum, 1870. 



42663. Fragment of the left maxilla, containing the four true 

 molars (the first and fourth imperfect) ; from the same 

 locality. Same history. 



40001. Part of the left ramus of the mandible, containing all the 

 {Fig.) cheek-teeth except m. 4 ; from the Pleistocene of Gowrie, 

 Queensland. Pigured by Owen in the ' Phil. Trans.' 1874, 

 pi. xxii. fig. 9, and pi. xxiv. figs. 7, 8, and also in the 

 ' Extinct Mammals of Australia,' pi. Ixxxii. fig. 9, and 

 pL Ixxxiv. figs. 7, 8. 



Presented by Sir D. Cooj^er, Bart., 1866. 



M. 3673. Cast of the slightly imperfect left ramus of the mandible 

 of a nearly adult individual, showing all the teeth ; pm. 4 

 being only partially protruded. The original, which is 

 preserved in the Museum at Oxford, was obtained from the 

 Pleistocene of Queensland, and is figured by Owen in the 

 ' Phil. Trans.' 1874, pi. xxii. figs. 5-8, and also in the 

 ' Extinct Mammals of Australia,' pi. Ixxxii. figs. 5-8. 



Presented by Prof. J. Phillies, 1872. 



42663. Pragment of the left ramus of the mandible of an immature 

 individual, showing ^3 fnlly protruded and m. 4 in alveolo -, 

 from a cave in the Welhngton Yalley. 

 Presented by the Trustees of the Australian Museum, 1870. 



Genus PROCOPTODON, Owen \ 



The mandibular symphysis is auchylosed in the adult, and the 

 ramus of the mandible short and deep, the diastema being also 

 short. The premolars resemble those of Sthcnunis in structure ; 

 but the true molars are elongated, and usually have their enamel 

 thrown into a series of vertical folds. There are large palatal 

 vacuities ; and the lower incisors are subcyliudrical. 



The metatarsals referred by Owen to this geuus (infra, p. 248) are 

 of a shorter type than those of the existing species of Macro^us, and, 

 if rightly associated, indicate that the disproportion between the 

 anterior and posterior limbs was less marked than in the latter. 



1 Phil. Trans. 1874, p. 788. 



