Index of foramen magnum 76.4 Length of hard palate, maximum 4.6 Height of hard palate at first molars 1.55 Breadth of hard palate at first bicuspids 2.9 Breadth of hard palate at first molars 3.55 Breadth of hard palate at third molars 4.1 Height of posterior 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 mandibles 9.85 [244] If allowance is made for the effects of flattening of the occipital on the long diameter, and hence on the index, of a skull, it becomes apparent that the true index of this skull is probably of a low brachycephalic, or, at most, of mesocephalic order. It is very doubtful if the deformity is intentional; its moderate extent and the total lack of signs of counter-compression would indicate with more probability that the deformity might have been produced by the individual lying, when an infant, by compulsion or habit, on something hard, probably a board. [245] The “biauricular” signifies the distance between points of the skull immediately above the commencement of the superior zygomatic border on the temporal. _The Vertebral Column_ _Cervical vertebræ_—Number complete; characters normal. All cervical spinous processes bifid; vertebra prominens well defined. All epiphyses absent. 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 Greatest antero-posterior diameter of foramen, same vertebra 1.45 Height of body in center, same vertebra .90 [Illustration: BUREAU OF AMERICAN ETHNOLOGY SEVENTEENTH ANNUAL REPORT PL. XVI GROUP OF SERI BOYS] _Dorsal vertebræ_—Number complete; characters absolutely normal. Resemblance to lumbar processes begins with tenth dorsal vertebra; a number of the epiphyses of the various processes either imperfectly united or detached; body epiphyses absent.