13(5 MEMOIRS OF THE UNIVERSITY OF CALIFORNIA. 



16th vertebra, anteroposterior diameter of centrum 21.5 mm. 



16th vertebra, height of centrum 30 



16th vertebra, width of centrum 33.5 



17th vertebra, anteroposterior diameter of centrum 21.5 



17th vertebra, width of centrum 33.5 



25th vertebra, anteroposterior diameter of centrum 24 



25th vertebra, height of centrum 30 



25th vertebra, width of centrum 45 



25th vertebra, height of upper arch 41 



MEASUREMENTS, SPECIMEN 9086. 



Anterior caudal vertebra, anteroposterior diameter of centrum 28 mm. 



Anterior caudal vertebra, transverse diameter of centrum a 48 



Anterior caudal vertebra, height of centrum 52 



Anterior caudal vertebra, height of upper arch 48 



Anterior caudal vertebra, length of chevron 72 



Anterior caudal vertebra, length of stem of chevron 39 



Ilium, greatest length 55 



Ischium, greatest length 61 



Ischium, greatest width 56 



a Approximate. 



VERTEBRAE OF SPECIMEN 10998. 



Number of Transverse Antero- 



vertebra counted Height of diameter of posterior 



from anterior end centrum diameter of 



of column* centrum 



3 27mm. 



9 18 



20 22 



23 35 



36 36 



38 21 



48 33 16 



65 23 9 



70 



84 19 9 



105 16 4.5 



110 12 4.5 



*To the number of vertebrae behind the skull about 5 to 10 vertebrae should be added to compensate for a 

 number which have been lost from the anterior end of the column. 



