24 KANSAS UiMVERSlTY QUARTERLY. 



Height of spine. ." 6i millim. 



Length of chevron 97 



Altitude of tail 122 



40. Length to rim of ball 15 



Vertical diameter of ball 15 



Height of spine 54 



Length of chevron 70 



Altitude of tail no 



45. Length to rim of ball 14 



Vertical diameter of ball 14 



Height of spine 40 



Length of spine 50 



Length of chevron 58 



Altitude of tail 93 



50. Length to rim of ball 13 



Length of spine 43 



Length of chevron 55 



Altitude of tail 73 



55. Length to rim of ball 12 



Length of spine 38 



Length of chevron 42 



Alti tude of tail 63 



60. Length to rim of ball 9 



Length of spine 46 



Length of chevron 25 



Altitude of tail 50 



66. Length to rim of ball 7 ~ 



Length of chevron 10 



Altitude of tail 20 



67. Length 6 



Ribs. 



As has already been stated, the cervical ribs were displaced in the 

 present specimen, and measurements of them cannot be given. In a 

 smaller specimen, specifically indistinguishable from the present one, 

 the entire cervical series is preserved with the ribs attached. The 

 first, that articulating with the axis, is very short. The following ones 

 are stouter, but increase only moderately in length, that of the sixth 

 measuring only thirty-five millimeters, while that of the seventh is 

 but a little longer. In the specimen of C. velox described, there is a 

 detached cervical rib sixty-five millimeters in length ; it probably 

 belongs with the seventh. 



The thoracic ribs are simple, somewhat flattened rods, moderately 



