12 ODONTORNITHES. 



Transverse diameter of anterior nares, 9.0™ 



Extent of premaxillary in front of anterior nares, 88.0 



Transverse diameter of occipital condyle, 10.0 



Vertical diameter of occipital condyle, 6.0 



Transverse diameter of foramen magnum, 9.0 



Measurements of Skull. (Hesperornis regalis, No. 1207.) 



Transverse diameter of occipital condyle, 9.0 m 



Vertical diameter of occipital condyle, 8.0 



Transverse diameter of foramen magnum, 12.5 



Distance between external margins of quadrate articulation, 49.0 



Greatest width of skull, behind quadrate articulations, 55.0 



Transverse diameter of quadrate articulations, 8.0 



Antero-posterior diameter of quadrate articulations, 6.5 



Length of quadrate, 32.0 



Transverse diameter of proximal end, 9.0 



Antero-posterior diameter of proximal end, 7.0 



Transverse diameter of shaft, at middle, 4.0 



Vertical diameter of pit for quadrato-jugal, .._ 6.0 



Antero-posterior diameter of pit for quadrato-j ugal, 4.0 



Longest diameter of inferior condyle of quadrate, '12.0 



Measurements of Lower Jaw. (Hesperomis regalis, No. 1206.) 



Length of lower jaw, . - - - 257.0™' 



Greatest vertical diameter of lower jaw, 25.0 



Extent of alveolar groove, 138.0 



Depth of alveolar groove, 5.0 



Greatest diameter of posterior facet for articulation with quadrate, 14.0 



Least diameter of posterior facet for articulation with quadrate, 5.0 



