$4 ARTIODACTYLE QUEENSLAND FOSSILS. 
distinct animals which are known marsupials ; the molar 
tooth does not present sufficient evidence to warrant 
its designation as non-marsupial and it has no affinity 
with the Papuan pig. 
This last point is of particular interest. Procherus 
celer has apparently been interpreted as evidence of the 
occurrence in Pleistocene deposits in Queensland of the 
Papuan Sus, and in the Federal Handbook of Australia, 
published in connection with the visit of the British 
Association in 1914, the following statement appears on 
the authority of Prof. David (p. 287). “*. . . Sus papuen- 
sis found its way southward from Papua, as far as Darling 
Downs, of Queensland.” 
Coming to details, it is convenient to deal first with 
the tooth referred to by De Vis as “‘a lower incisor, the 
middle tooth of the left side.” This is undoubtedly a left 
lower laniary incisor of Thylacoleo carnifex, Owen. When 
Procherus celer was described it is presumed that no lower 
jaws of Thylacoleo with these incisor teeth in position were 
available in the Queensland Museum collections. Direct 
comparison with such specimens now establishes identity. 
It is somewhat surprising, however, that the similarity 
was not recognised of the supposed new tooth with the 
incisors figured by Owen and Krefft. Specimens (un- 
named) were even illustrated by Mitchell in 1838.* Except 
that it is in a more advanced state of wear, the tooth 
described and figured by De Vis very closely corresponds in 
size, contours and in the extent and deposition of enamel 
with figures 5, 6 and 7, Plate IX, of Owen’s work.f ; 
Six upper incisors are noted by De Vis in his paper, 
and three of these are figured. Associated with these are 
eight other specimens, apparently regarded as paratypes. 
These fourteen incisors exhibit considerable variety, and 
range from unworn, obviously juvenile, examples, 80 mm. 
in length, to teeth 58 mm. long. Several of these are iden- 
tical with the second and third upper incisors in position 
in the premaxillaries of Nototherian mammals, now in the 
Queensland Museum, which were secured from fluviatile 
* Mitchell, Exped. to Aus., II, pl. 32, 1838. 
+ Fossil Mammals of Australia, 1877. © 
