No. 566] EDAPHOSAURUS CRUCIGEB 



121 



Edaphosaurus was a highly specialized creature, slug- 

 gish in movement and entirely harmless, living upon mol- 

 luscs, insects and perhaps vegetation. It probably lived 

 in the woods or near swamps at some distance from the 

 lowlands upon which were deposited the deltas which 

 make up the Wichita and Clear Fork formations. 



In conclusion the author wishes to express his thanks to 

 Dr. Ruthven, of the University of Michigan, for many 

 valuable suggestions in arranging the pose and propor- 

 tions of the restoration, and to Mr. Irwin Christman, of 

 the American Museum, for the painstaking care with 

 which his suggestions have been followed in making the 

 drawing. 2 



and a complete synonymy of the two genera will be found in Publications 

 55 and 181 of the Carnegie Institution of Washington. 



