THE MALAYS, THE NATIVES OF FORMOSA, AND THE TIBETANS. 791 



Sea Dyaks. Table II. Plate II. 



The Sea Dyaks occupy Sarawak to the east of the Land Dyaks ; they have settled 

 on the banks of the Rejang, Kalakah, Saribas and Batang-Lupar rivers, with their 

 tributaries, and they are found also in Dutch Borneo. Mr Maxwell states that they 

 are more stoutly built than the Land Dyaks. The skin is a rich brown, the hair is long, 

 jet black and flowing ; the eyes are black ; the nose is short and upturned at the tip. 

 The women are not so dark as the men and the skin has a yellowish tint. The average 

 stature of the men is about 5 ft. 3 in., though occasionally it reaches 5 ft. 7 in. They 

 exceed the Malays in height and have graceful figures. They file the teeth and stain 

 them black. They are head hunters. Tattooing is not universally practised. Mr 

 H addon adopts the name Iban in substitution for Sea Dyak, and he gives the fol- 

 lowing physical characters : — average stature 5 ft. 2^ in. ; broad head, average cephalic 

 index 83 ; skin darker than among the inland tribes ; long, slightly wavy, black hair,, 

 showing a reddish tinge in certain lights ; the people, though short, are active. 



The skull of an adult male Sea Dyak was in the collection made by Dr Adamson. 

 It was not smoke-stained, nor was a loop of cane attached to it for purpose of suspension. 

 It was injured in the left parietal and squamous regions, and the lower jaw had not been 

 preserved. 



Norma verticalis. — The cranium was broadly ovoid in outline, and the cephalic 

 index, 78*5, was in the upper term of the mesaticephalic group. The vault was faintly 

 keeled, and it sloped definitely down to the parietal eminences, below which the side 

 walls bulged a little. The parieto-occipital slope was steep, though not vertical, and it 

 was oblique to the left, probably from artificial flattening. The skull was phsenozygous. 



Norma lateralis. — The forehead was somewhat retreating ; the glabella and supra- 

 orbitals were well marked ; the outer part of the upper border of the orbit was thickened 

 but distinct from the supraorbital process, and the corresponding part of the frontal bone 

 was flattened. The nasion was slightly depressed ; the bridge of the nose was broken, 

 but obviously had only slightly projected, and had been somewhat flattened from side 

 to side. The frontal longitudinal arc was the longest, the occipital was the shortest. 

 The skull rested behind on the mastoids. 



Norma facialis. — The floor of the nose was separated from the incisive region by a 

 low ridge ; the maxillo-nasal spine was short. The anterior nares were relatively wide, 

 and the nasal index, 50*9, was mesorhine. The canine and incisive fossae were moderately 

 deep. The nasio-malar index was 108 '9 and mesopic. The maxillo-facial index, 51 "8,. 

 was narrow or leptoprosopic, although the interzygomatic breadth, which gave width to 

 the face, was 139 mm. The upper jaw showed alveolar prognathism and the gnathic index 

 was highly mesognathous. The interorbital breadth was 26 mm., the orbital aperture 

 was nearly equal in its two dimensions and the index was megaseme. The hard palate 

 was moderate in depth and the palato-maxillary index, 116'3, was brachyuranic. The 

 teeth had not been preserved. 



