770 ' Proceedings of the Royal Irish Academy. 



raised into a knob beldnd the right condyle. The right jugular hole 

 is twice the size of the left; the styloid process is small; the mastoid 

 large and thick, especially the left, as the right is a little flattened 

 behind. The glenoid cavity is very much flattened, with scarcely any 

 transverse ridge in front, and a very faiut eminentia articularis. The 

 foramen spinosum on the right is confluent with the spheno-petrosal 

 suture. The pterygoid plate is not toothed, but the outer wall of the 

 scaphoid fossa rises into a spur, and the external pterygoid plate has 

 an upper spur for the upper form of the ligamentum pteiygo spinosum.^ 

 There is a strong crista verticalis on the anterior and outer part of the 

 external pterygoid plate, in fi'ont of the pterygomaxillary fossa. The 

 processus malaris of the maxilla rises along the fi^ont of the spheno- 

 maxillary fissure, and almost excludes the malar from the margin. 

 The malar has a well-marked masseteric crest, and the maxilla has a 

 sutura infraorbitalis transversa, while the infi'aorbital hole is united to 

 the brim of the orbit by the continuation of the fissure. The pre- 

 lachiymal sutui'e is nearly complete on the left, cutting off an accessory 

 lachrymal, but is not so well marked on the right. The lachrymals 

 have exceedingly sharp crests and deep grooves, but no hamuli. The 

 nasals are narrow, separate, unsymmetrical, with foramina of "Wenzel. 

 The anterior nasal spine is sharp, the canine fossa deep, and the 

 zygomatic ridges well marked. The alveolar arches are very large, 

 the palate rather deep, the posterior nares narrow, oblique, the whole 

 aspect of the pterygoid region being constricted at the basal attach- 

 ment of the pterygoid processes. There is a supernumerary single- 

 fanged tooth between the first and second premolar on the right side 

 internally. 



The measurements are as follows: — Length, l79mm. ; greatest 

 breadth, 137 ; fi'ontal breadth, 104 ; circumference, 505 ; intermastoid 

 are, 400 ; fi'onto-occipital arc, 340 ; height, 149 ; orbital height, 32 ; 

 orbital width, 37 ; nasal height, 49 ; nasal width, 24 ; basi-alveolar, 

 line, 108; basi-nasal line, 103; palato alveolar length, 62; palato- 

 alveolar width, at last molar tooth, 66 ; palatine width, 38 ; width of 

 both posterior nares, 21 ; height, 24 ; width of foramen magnum, 29 ; 

 length, 33; length of spheno-parietal suture, 21. The lower jaw is 

 large, with very little chin ; external width at the angles being 105 ; 

 at condyles, 115 ; at coronoid processes, 90. The left condyle is 21 

 long, the right 20 ; the sigmoid notch is 33 wide ; the vertical height 

 of the coronoid process is 64 ; the inner length of the intercondyloid 

 intervals is 76 ; and the height at the chia is 32 ; while the whole length 

 from angle to angle round the lower margin of the chin is 210. From 

 these it will be seen that the altitudinal index is "SS : the latitudinal, 

 much less, is -76 ; the orbital, -86 ; the nasal, -48 ; the alveolo-nasal, 

 •104; the capacity measured by Busk's choremometer, 1350. 



The cranium thus belongs to the type of hypsi-mesaticephalic 

 leptorhine, mesoseme, prognathous, microcephalic skulls, and thus 

 resembles in type the other Melanesians of neighbouring islands. 



2 See Proceedings, Eoyal Irish Academy, vol. ii. N". S., Science, p. 202. 



