REPTILIA OF KIETLAND FORMATION GILMOEE 



179 



difficult if not impossible to identify certainly other specimens with 

 it. In view of the similar geographic and near geologic occurrence 

 of the two specimens and the close agreement in structural details, 

 so far as comparisons are possible, the assignment of the specimen 

 to B. nohilis seems justified. If correct in this tentative identifica- 



!>••"■"■ 



Figure 14. — Plastron of Basilemys nohilis Hay. U.S.N.M. no. 

 110S4. About one-sixth natural size. 



tion, the specimen is of interest in contributing to a better under- 

 standing of this little-known species. 



This specimen is about the same size as the type, the carapace at 

 the center measuring 720 mm in length. The whole surface of the 

 shell is sculptured with rough pyramidal elevations arranged in 

 rows forming a pattern that is distinctive of the genus, but appar- 

 ently alike in all described species. 



