144* THE SERI INDIANS [ethan.n.17 



Orbital index, 90 2 = Megaseme. ir. 



Mean depth of orbits 4.6 



Dacryou to dacryon 2. 3 



Frontal diameter, minimum 9. 2 



Frontal diameter, maximum (interstephanic) 11. 4 



Biauricular diameter ' 12. 3 



Diameter tbroiigli i)arietal bosses 14. 3 



Biniastoid diameter 10. .55 



Distance from superior alveolar arch to inferior occipital 



ridge 14.35 



Distance between snpramastoid eminences 13. 9 



Length of basilar process (notch of vomer to basion) 2. 95 



Basion-brcgma height 13. 45 



Basion-obelion height ? (obelion indistinct.) 



Basion-ophryon 14.0 



Basion- inion .S. 1 



Circumference, maximum 49. 4 



Nasion-ophryon arc 1.8 



Nasion-bregma arc 12. 3 



Nasion-iniciD arc 30. 



Nasion-opisthion arc 35. 5 



Pterion-bregma arc 11.2 



Arc external meatuses, over forehead 29. 2 



Arc external meatuses, over frontal bosses 30. 4 



Arc external meatuses, over bregma 34. 



Arc external meatuses, maximum 35. 7 



Arc external meatuses, over inion 23. 6 



Temporal ridges to sagittal suture (stephanions-bregma), 



(arc ) mean 7. 5 



Lateral diameter of foramen magnum, maximum 2. 75 



Antero-posterior diameter of foramen magnum, maximum. 3. 60 



Index of foramen magnum 76. 4 



Length of hard palate, maximum 4. 6 



Height of hard palate at tirst molars 1. 55 



Breadth of hard palate at first bicuspids 2. 9 



Breadth of hard palate at tirst molars 3. 55 



Breadth of hard palate at third molars 4. 1 



Height of postciior nares 3. 1 



Breadth of posterior nares 2. 55 



Index of posterior nares 82. 2 



Angle of mandibles 114' 



Length of mandibular rami 9. 55 



Bigoniac diameter of mandi hies 9. 85 



The Vertehrul Column 



Cervical rerirhrii- — Xumber complete; characters normal. All cervical sjiiuous 

 processes bifid ; vertebra prominens well defined. All epijihyses ab.sent. 



cc. 

 Transverse diameter of third cervical vertebra (between 



posterior tubercles of the pedicles), maximum 5.05 



Antero-posterior diameter of third cervical vertebra (body- 



spinous process), maximum 4. 20 



Greatest lateral diameter of foramen, same vertebra , 2. 15 



1 Tlio " biauricular" eiguifica the fU.stance between points of the slvufl immetliately above the com. 

 luencement of the superior zygomatic border on tlie temporal. 



