244 KANSAS UNIVERSITY SCIENCE BULLETIN. 



bones, the presence of a quadratojugal, and of a well-ossified 

 sclerotic ring, etc. The pectoral girdle, which, with the pelvic 

 girdle, is marvelously complete and undistorted, has a large 

 interclavicular foramen, never before observed in these animals, 

 though present in other forms. A full description of the skele- 

 ton, with illustrations, is already prepared for publication. 



It is possible that the present species may prove to belong to 

 some one of the previously described genera, but from a pro- 

 longed study of the descriptions extant, and of the nine or ten 

 species actually known to me, I do not think so. I have there- 

 fore given it the name of Dolichorhynchops osborni in honor of 

 Prof. H. F. Osborn, of Columbia University, the well-known 

 paleontologist. 



