CASE— COTYLOSAURIA 



1. View of third, fourth, fifth, and succeeding ribs of D. phaseolinus. No. 4684 Am. Mus. 



2. Teeth of Desmatodon hollandi. X 1. No. 1938 Mus. Carnegie Institute. 



3. Chevron of diadectid reptile from Pittsburg region. 



4. Right half of pelvis of Labidosaurus, outer view. X %. After Broili. 



5. Same from inner side. 



6a. Same, seen from above and within. 6b, Same, seen from below and without. 



7. Right femur, Labidosaurus, lower view. X %. After Broili. 

 8a. Left femur from below. 8*, Same, from above. After Broili. 



