BY HEBER A. LONGMAN. 87 
In his interpretation of these teeth and the suggested 
alliance with the Dicotyline of South America, De Vis 
was probably influenced by a priori considerations, such 
as the presence of marsupials in both countries and the 
large number of fossil peccaries and allies described from 
American deposits. 
At present the danger of basing conclusions on isolated 
teeth is more generally recognised, and the extreme dental 
variability of the Marsupialia as a whole has been pre- 
viously emphasised by the writer.* In connection with 
the utilisation of specimens from different sources, it may 
be pointed out that so great an authority as Owen included, 
in addition to lacertilian remains, “‘a chelonian skull and 
tail-sheath, and marsupial foot-bones”’ in his description 
of Megalania prisca.t 
It should be added that as the domestic pig has now 
“run wild’ in several places, in Queensland, its bones 
will probably be found from time to time in scrub country. 
* Proc. Roy. Soc., Q’ld., X XVI, 1914, p. 36. 
t Woodward, Ann. Mag. Nat. His. (6) 1, 1888, p. 88. 
