56 BONE BRECCIA DEPOSIT, 



It is unfortunate that I have not succeeded in getting any 

 specimens with the upper p^ in position, and only one specimen 

 (PI. fig. 4) showing the socket. From this specimen the tooth 

 appears to have been almost double-rooted and placed much 

 closer to p'^ than in P. peregrinus, and in this I'esembling more 

 P. cooki. 



Perameles wombeyensis, n.sp. 



(PI. VIII. figs. 1-8). 



The above name I propose for a species of Perameles which 

 must have been very common at the period when the bone 

 deposit was formed. Though from the nature of the matrix I 

 have been unable to develop a single perfect jaw, yet I have 

 succeeded in finding sufficient fragmentary specimens to enable 

 me to give almost all the important details of dentition. The 

 species seems to have been a form a little larger than P. obesula, 

 and to have resembled it in being short-nosed. 



The upper incisor teeth are unknown, the premaxillary being 

 absent from all the upper jaw specimens I have. The canine is 

 moderatelydeveloped and rather largerand flatter than in P. obesula. 

 'P^ is considerably larger than in P. obesula, and directed some, 

 what forward. It is placed about 2 mm. behind the canine. P"^ 

 is about equal in size to p^ and placed a little less than 1 mm. from 

 it. It has a distinct anterior secondary cusp and a less marked 

 posterior one. P""^ is unknown. The upper molars resemble those 

 of P. obesula in being soon worn down, and in old specimens 

 leaving no trace of the cusps. In shape there is considerable 

 agreement with those of P. obesula, the section of the worn tooth 

 being quadrangular, with rounded angles. M* is unknown. 



The lower jaw bears more resemblance to P. obesula than any 

 other existing form. The anterior edge of the coronoid process is 

 straight and the process itself passes back obliquely. The angle 

 seems less produced than in P. obesula, though it is possible a por- 

 tion of the slender tip may have been broken off" in the figured 

 specimen (PI. fig. 1). The lower incisors are absent, but in fig. 



