Cope.J ^^0 [Deo, 18, 



Scapula length 145 



" width proxima] 07 



" " median 112 



Coracoid width, proximal 066 



Humerus length 154 



" width proximal 119 



" " median 075 



" " distal (restored from C. propython) 158 



Radius length 115 



" width proximal 061 



" " distal (oblique) 105 



Carpal length 04 



" Avidth 037 



Metacarpal length 095 



' ' width proximally 045 



" " medially 018 



" " distally 034 



Phalange (medial) length 085 



'• " width proximally 027 



" (distal) length 059 



" " width distally 0082 



Ramus mandibuli, depth in front of cotylus , 056 



Cervical rib, length 074 



The total length of the anterior limb could not have been less than 

 0.90 M., which allows of five phalanges in the longest digit. There may 

 have been more. That the digits were of unequal length is indicated by 

 portions of two in matrix accompanying the specimens, Avhere the articu- 

 lation of two phalanges falls opposite the shaft of one of the adjoining 

 digit. The phalanges were separated by a short interval of cartilage. 



The size of this reptile was near that of L. validus, perhaps thirty- five 

 to forty feet in length. 



The affinities of this species as incidentally pointed out, are to those 

 Liodons v^^hich approach Clidasies. This is indicated by the many pterygoid 

 teeth, the rudimental zygosphen articulation, the regular striaB of the 

 bones, and the forms of the limb bones. In Mosasaurus the humerus is 

 shorter and the phalanges are longer. 



The specimens on which this species rests were discovered by Prof. B. 

 F. Mudge, formerly State Geologist of Kansas, now Professor of Geology 

 in the State Agricultural College of Kansas, on the north bank of the 

 Smoky Hill River, thirty miles east of Fort Wallace, Kansas. 



Numerous fragments of another larger individual were found by Prof. 

 Mudge near the same locality, which belong probably to the same species. 

 Among them is a portion of the maxillary bone with bases of two teeth ; 

 the bases of the crowns where broken off are not compressed, but slightly 

 oval. A radius is a flat bone, more dilated at one extremity than that of 

 Glidastes propython. 



