708 PRINCIPAL SIR WILLIAM TURNER ON 



foramen, and the torus supraorbitalis was not formed ; a transverse supraorbital 

 depression was slightly indicated in the males. The supraorbital trigone was fairly 

 marked in the males. The frontal eminences, with one exception, were distinct ; no 

 skull was metopic. The nasion was depressed in one skull only. The nasal bones were 

 not projecting ; the bridge was slightly keeled and its profile outline was somewhat 

 concave ; when entire their length in a straight line measured 17, 21, 23 mm. 

 respectively. The interorbital width was 20, 21, 22, 23, 24 mm. respectively. The 

 skulls rested behind on a convex cerebellar part of the occipital. In four crania the 

 occipital longitudinal arc was the shortest, in one it and the parietal arc were equal ; 

 in three the frontal arc was the longest, in three the parietal was the longest. 



Norma facialis. — The lateral boundary of the anterior nares was a sharp ridge, the 

 crista prsenasalis (Klaatsch),* which gradually blended with the incisive region, 

 though in one female it separated the nasal floor from the incisive region. Immediately 

 behind it in the males was a narrow, shallow groove, the fossa prsenasalis, bounded 

 behind on the wall of the inferior meatus by a faint ridge [margo infranasalis) which 

 crossed the nasal floor to join the low maxillo-nasal spine. In one skull (No. 12) the 

 incisive region showed alveolar prognathism. In three skulls the canine fossae were 

 deep. The width of the anterior nares ranged from 21 to 27 mm., the mean of two 

 males was 25 mm., and of three females 23 "3 mm. ; the nasal height ranged from 43 to 

 52 mm., the mean of two males was 49 mm., and of three females 46 mm. In two 

 skulls the nasal index was leptorhine, in three platyrhine, and the mean index, 51, 

 was mesorhine. The orbital borders were not thickened and the aperture was rounded 

 in two skulls, the mean index, 93 "6, was megaserne, though two were mesoseme. The 

 gnathic index, 98 '6, computed by Flower's method, was mesognathous in the mean, 

 though two were orthognathous. 



The imperfect facial region did not permit a complete facial index to be taken, but 

 the maxillo-facial index, ranging in three specimens from 53*2 to 58, with 55 as the 

 mean, was leptoprosopic, narrow in relation to height, which was also their character 

 individually. The nasio-malar index, as determined by the relation of the bimalar to 

 the nasio-malar diameter, f ranged from 108"8 to 110*5 ; one was pro-opic, with a fair 

 nasal profile, three Avere mesopic, but in no specimen was the profile flat-faced, platy- 

 opic. In three skulls the palate was highly arched, and in two moderately so ; the 

 palato-maxillary index ranged from 103"8 to 116'6, three were dolichuranic, one 

 mesuranic, one brachyuranic. The only lower jaw was of moderate size, the angle was 

 everted and the chin was oblique and prominent. The teeth were mostly lost, those 

 in place were partially worn. 



The cranial sutures were well denticulated. Small Wormian bones were seen in 

 the lambdoid of No. 8, in the squamous of No. 12, and in the occipito-mastoid of 



* Reports of Pathological Laboratory of Lunacy Department, vol. i., part iii., 1908, Sydney. 



+ The nasio-malar index is obtained by the formula "asio-malar di. x 100 j^^^^^ ^^j^^ ^^g ^^ platyopic, flat-faced 



bimalar di. 

 profile; pro-opic, projecting jirofile, above 110 ; mesopic, between 106 and 110. 



