BROAD-FRONTED WOMBAT. 253 
Of the Broad-fronted Wombat, nil that is known is a skull 
sent from South Australia to Professor Owen, This skull 
presents so many marked differences when compared with that 
of the Phase. Wombat, that no doubt can bo entertained of 
the existence of two distinct species of Wombats. I have 
sought in vain, however, amongst the specimens of Wombats 
contained in our museums, for an animal which might be 
identified with Professor Owen’s new species. In none have I 
found the incisor teeth presenting the broadest surface in 
front, a peculiarity in which the IK latifrons differs from IK 
Wombat , where the broadest part of the incisor is at the side. 
The new species differs moreover in having the upper incisors 
distinctly broader than the lower, whilst in the Common 
Wombat the upper and lower incisors are very nearly equal 
in width when viewed in front. The following points of dis¬ 
tinction presented by the skull of the P. latifrons , when com¬ 
pared with that of the P. Wombat, are for the most part 
pointed out in some notes from the pen of Professor Owen, 
who has kindly placed them at my disposal. 
The skull of Phase . latifrons is rather smaller and 
broader in proportion to its length; the upper incisors have a 
semi-oval transverse section; the convex enamelled surface 
directed more forward, and longitudinally substriated. The 
lower incisors narrower, trihedral, with the enamelled outer 
surface flat. The first lower molar tooth relatively larger; 
the last relatively smaller. The lower jaw is shorter, more 
suddenly curved behind, and has the symphysis deeper; the 
intermaxillary part of the skull is higher in proportion to the 
width, and less convex externally; the palate is less contracted 
between the foremost molars, and the palntine portion of the 
intennaxillaries is wider and very concave. The nasal bones 
are broader, forming the whole upper surface of the anterior 
third of the skull. The interorbital part of the cranium is 
much broader, and presents a well-marked supra-orbital ridge 
