Aug. 1897. Observations on Papuan Crania — Dorsin. 27 



Processes. — Mastoids small. External occipital protuberance not 

 indicated. Both pterygoid plates almost absent. 



Muscular Impressions. — Very slight. Occipital lines barely dis- 

 tinguishable. 



NO. 40,615. — Cranium of a young female. All the teeth have 

 erupted, including the third molars, but the basilar synchondrosis is 

 open. The teeth are all large, well formed, and there is no trace of 

 wear. The upper right and the lateral left incisors are lost. Cranial 

 capacity, 1,365 cc. 



Norma Frontalis. — (See PI. VIII, Fig. 1.) The frontal region is 

 very narrow — minimum width, 89 mm. — with a faintly indicated gla- 

 bella, but no trace of superciliary ridges. The orbits are rectangular 

 in form, with infraorbital suture on left side. The nasal bones are 

 small, somewhat flattened and of unequal size. The slope of the nasal 

 opening is very marked, and the nasal spine is almost nil. The canine 

 fossa:* are deep. 



Norma Verticalis. — Ovoid shaped. The narrowness of the frontal 

 region is striking. Parietal eminences are beautifully indicated and 

 are situated well back; that of the right side, however, is about 10 

 mm. anterior to that of the left. 



Norma Posterior. — (See PI. VIII, Fig. 2.) Pentagonal in form, 

 higher than broad and narrowed below. The superior curved line is 

 hidden from view. 



Norma Lateralis. — (See PI. VIM,- Fig;.; 3.) Frontal development 

 is fairly well marked, but the tubera are not prominent. The naso- 

 frontal depression is very slight. The face is decidedly prognathic, 

 the alveolar prognathism being very prominent. 



Norma Inferior. — Foramen magnum rounded; prominent jugular 

 processes, with deep condyloid fossa?. 



Sutures. — Nos. 2-3 of Broca's scale. No wormian bones. 



Processes. — Mastoids small and sharp, but much compressed 

 from side to side, and deep digastric groove. No external occipital 

 protuberance. 



Muscular Impressions. — Occipital ridges scarcely visible. Supe- 

 rior temporal line well marked but not situated high up. Insertion 

 areas of sterno-cleido-mastoid and splenius capitus are very rough. 



Mandible. — Well developed. Mandibular angle very open. Cor- 

 onoid process long and sharp, an unusual condition for a young 

 skull. 



NO. 40,610.— This skull is that of an adult, but whether of male 

 or female it is difficult to decide. It has a glabella and inion of rather 



