Transactions. — Zoology. 



Orbital index 

 Nasal index 

 Gnathic index 

 Palato-maxillary index 



Orbital height x 100 



Orbital width 

 Width of anterior nares x 100 



Nasio-spinal length 

 Basi-alveolar length x 100 



Basi-nasal length 

 Palato-maxillary length x 100 



Palato-maxillary breadth 



In grouping the skulls according to their indices I have 

 used the divisions as named and defined by Flower"'' and 

 Turn erf. 



Dolichocephalic 



Mesaticephalic 



Brachycephalic 



Tapeinocephalic 



Metriocephalic 



Akrocephalic 



Microseme 

 Mesoseme 

 Megaseme 



Leptorhine 

 Mesorliine 

 Platyrliine 



Orthognathous 

 Mesognathous 

 Prognathous 



Dolichuranic 



Mesuranic 



Brachyuranic 



Cephalic index below 75. 



between 75 and 80, inclusive, 

 above 80. 



Vertical index below 72. 



between 72 and 77, inclusive, 

 above 77. 



Orbital index below 84. 



between 84 and 89, inclusive, 

 above 89. 



Nasal index below 48. 



between 48 and 53, inclusive. 

 „ above 53. 



Gnathic index below 98. 



between 98 and 103, inclusive, 

 above 103. 



Palato-maxillary index below 110. 



„ between 110 and 115, incl. 



above 115. 



The grouping of the skulls according to their cranial capa- 

 cities is as follows : — 



Microcephalic . . Below l,350c.c. 



Mesocephalic . . Between 1, 3.50c. c. and 1,450c. c. 



Megacephalic . . Above l,450c.c. 



inclusive. 



I give in Tables I. and II. the measurements of eighty- 

 three Maori skulls. Fifty are adult males, twenty-six are 

 adult females, and seven are the skulls of children. Thirty- 

 five of these are in the Canterbury Museum at Christchurch ; 

 twenty-nine are in the anatomical museum of the University 

 of Otago ; twelve are in the Colonial Museum at Wellington ; 

 while the remaining seven are in private collections. 



The number of skulls of the Maori race already de- 

 scribed by competent observers is sufficient to adequately 

 establish the cranial characters of the race generally. I 

 therefore did not undertake this series of measurements with 



* " Catalogue of the Museum of the Royal College of Surgeons." 

 t " ' Challenger ' Reports " : Human Crania. 



