332 



1796. The mutilated skull, wanting the lower jaw, of a Wombat (Phascolomys Vom- 

 batus). 



Although the mature dentition and full size are acquired, the sutures of the occipital ele- 

 ments remain. The right exoccipital has been removed, and the tympanic and mastoid 

 elements of the temporal of the same side have been detached from the equally distinct 

 petrosal and squamous elements. The pterygoids have likewise been removed. 



Presented by Prof. Owen, F.R.S. 



1797. The detached teeth of the same Wombat, Presented by Prof. Owen, F.R.S. 



The following parts of the skeleton of a Wombat (Phascolomys Vombatus) were 



Presented by H. Everett, Esq. 



1798. The skull. 



1799. The lower jaw. 



The inflection of the angle, characteristic of the Marsupialia generally, is here carried to 

 excess. 



1 800. The neurapophyses of the atlas. 



They are wide apart below, in consequence of the absence of the usual hypapophysis or 

 wedge-bone of this vertebra. 



* 



1801. The odontoid vertebra. 



A fissure of the median portion separates the centrum of the atlas, now forming the odon- 

 toid process, from the true centrum of the second cervical. 



1802. The third cervical vertebra. 1803. The fourth cervical vertebra. 

 1804. The fifth cervical vertebra. 1805. The sixth cervical vertebra. 



1806. The seventh cervical vertebra. 



The upper transverse process is long and strong ; the lower one is a small projection only, 

 between which and the former the passage of the vertebral artery is indicated by a notch. 



1807. The dorsal vertebrae. 



They are numbered consecutively from 1 to 15. 



