8 Proceedings of the Royal Society of Victoria. 



There is a deep concavity between the two limbs forming the 

 anterior forked end of the malar ; the part of the zygomatic 

 process of the maxilla in contact with the lower limb of the fork 

 is produced into a distinct bluntly rounded process (Fig. 2). 



Paroccipital process inconspicuous, forming a smooth rounded 

 downgrowth fitting on to but not projecting beyond the hinder 

 wall of the swollen mastoid portion, of the auditory bulla. 



Bull*, both alisphenoid and mastoid portions, relatively more 

 inflated with their surfaces smoother than in P. lagotis. 



Anterior palatine foramen extending nearly as far back as 

 the canine. Posterior palatine foramina extending from /> 3 to 

 m 3 ; divided by a narrow long septum. Large but irregular 

 vacuities behind.* 



Teeth. I s separated from i* by a diastema of 1*5 mm. and 

 from the canine by a diastema of 3 mm. Canine long and 

 strong, its distance from p 1 , 4 - 5 mm. Premolars as in P. lagotis. 

 Molars differing from those of P. lagotis in not being rounded 

 in section, their summit with cusps much like though not so 

 prominent as those in Perameles and in this respect resembling 

 those of P. hucura. Lower canine slightly longer than the 

 premolars. P l slightly longer longitudinally than/ 4 , p* decidedly 

 longer than either of them. Molars distinctly cuspidate. 



Skull Dimensions (<?)• 



Mm. 



Basal length .. ... ... 66 



Greatest breadth ... ... ... 34 



Nasals length ... ... ... 32 



Xasals greatest breadth ... ... 6 - 5 



Intertemporal breadth ... ... 11 



Palate length ... ... . 41 



Palate breadth outside m s ... ... 17 - 5 



Palate breadth inside nr s ... ... 10 - 5 



Palatal foramen ... ... ... 7 



Basi-cranial axis ... . . ... 20 



Basi-facial axis ... ... ... 46 



Facial index ... ... ... 230 



* In the specimen figured there is a single vacuity on the right side only between the 

 anterior and posterior foramina — see Fig. 2. 



