826 



the cranium are thick, dense, with little diploe in the parietal part. The rhinencephalic 

 fossa is narrow and deep. The sinuses from the nasal cavity do not ascend above, or pene- 

 trate the glabellar prominence. 



Presented byJ. B. Jukes, Esq., F.G.S. 



5818. The cranium of an aged Australian of the Port Phillip district. 



The alisphenoids are broader than usual in this skull, and join the parietals. The calva- 

 rium has been removed, by a section through the glabellar prominences indicative of the 

 frontal sinuses, but these have not been developed, and the bone is occupied there by a minute 

 cancellous structure or diploe. 



Presented by Dr. Hobson. 



5319. The cranium of an Australian of King George's Sound. 



The alisphenoid joins the parietal on the left side ; a wormian bone is interposed on the 

 right. There is a marked indentation at the sides of the deltoid suture. 



Presented by Captain Philip King, R.N. 



5320. The skull of a male Tasmanian, or aboriginal of Van Diemen's Land. 



The last molar is not fully in place in the upper jaw. The apex of the alisphenoid reaches 

 the parietal on both sides of the head. 



Presented by Ronald Gunn, Esq. 



5321. The skull of a female Tasmanian. 



The right last molar is not fully in place. The alisphenoid joins the parietal on both sides. 

 This skull is remarkable for having but three inferior incisors, the middle one on a line with 

 the symphysis, and opposing the interspace of the two upper middle incisors, without any 

 trace of the obliterated socket of the defective median incisor. 



Presented by G. J. Guthrie, Esq., F.R.S. 



5322. The skull, with the atlas, of a female Tasmanian. 



The last true molar is not in place in either jaw. This skull presents the same variety of 

 the inferior incisors and the same absence of any trace of the previous existence of the missing 

 one. The alisphenoid joins the parietal on both sides of the head. 



Presented by Sir Everard Home, Bart., V.P.R.S. 



5323. The skull of a female Tasmanian. 



The last true molar is concealed in the formative alveolus in both jaws. The alisphenoid 

 joins the parietal on the right side ; a wormian ossicle is interposed on the left side. The 

 os fronds shows traces of the effects of a severe blow. The sockets of the inferior incisors are 

 in the normal number and position. 



Presented by Ronald Gunn, Esq. 



