172 MARSUPIALIA 



and, as in Diprotodon, there appears to have been no tooth-change. 

 The humerus probably referable to Nototherium is of a short and 

 widely expanded type, with a large entepicondylar foramen, and 

 coming nearer to that of the Wombat than to that of any other 

 existing form. The NototJieriidce may apparently be regarded as a 

 distinct family connecting the Diprotodontida with the Phasco- 

 lomyidce and Phalangeridce. 



Bibliography of Marsupialia. G. R. Water-house, Nat. Hist, of tJic Mammalia, 

 vol. i. "Marsupiata," 1846 ; J. Gould, Mammals of Australia, 1863 ; R. Owen, 

 article "Marsupialia," in Cyclop, of Anatomy and Physiology, and various 

 memoirs "On Extinct Mammals of Australia" in Philosophical Transactions; 

 W. H. Flower, " On the Development and Succession of the Teeth in the Mar- 

 supialia," Phil. Trans. 1867 ; 0. Thomas, "On the Homologies and Succession 

 of the Teeth in the Dasyurids," Phil. Trans. 1887 ; and "Catalogue of Mar- 

 supialia and Monotremata in the British Museum," 1888. 



