A DESCKirnOX OF SOME TASMANIA^ SKCLLS SMITH. "23 



On the light side there are two accessory palatine foramiua 

 on the palate bone, a larger antero-external and a smaller 

 postero-internal, separated by a well-marked ridge of bone. 

 On the left side there is one accessory foramen. The roof of 

 the! palate is 9 mm. above the level of the alveolar borders. 



The sutures uf the skull are well marked ; none of them are 

 obliterated in any part. The coi'onal is simple. The sagittal 

 also is simple except for some denticulation. The lambdoid is 

 partly denticulated or serrated ; the left limb has one wormian 

 bone in it ; the right has two. There is a short much denticu- 

 lated metopic suture. 



1254. AUSTRALIAN MUSEUM. 



(Plate xi., fig. 2). 



This specimen consists of the upper portion of a skull. It 

 is known to be Tasmanian, but the Curator does not know 

 from whom it was received. The bones composing it are the 

 frontal, the parietals, part of the occipital, and the squamous 

 portion of the right temporal. The sutures are nearly all 

 obliterated. The posterior portion is considerably weathered. 



Norma verticalis. — The skull is long, and is ovoid in outline. 

 The triangular area in front of the bregma is fairly well 

 marked, and the flattened areas that bound it pass backwards 

 to near the posterior boundaries of the parietal eminences. 

 Anteriorly, they appear to stop at the level of the frontal 

 eminences, and they are separated from each other by the 

 rather wide and rounded medial ridge that runs forwards 

 towards, but does not reach, the glabella. The frontal 

 eminences are well defined, the outer mai-gins being about 

 15 mm. from the temporal curved lines. These lines run 

 backwards, and pass just above the most prominent parts of 

 the parietal eninences. The sagittal suture is in a shallow 

 groove on a well-marked medial ridge, and the groove widens 

 out as it runs backwards, after the fashion described in the 

 former skulls. Below the eminences the lateral walls are 

 almost perpendicular ; if anything, they bulge slightly. The 

 maximum transverse diameter is about midway between the 

 parietal eminences and the parieto-squamous sutures. The 



