igoo.] Osborn, Phylogeny of the Rhinoceroses of Europe. 239 



3. Lower Miocene. 

 Sables de I'Orle'afiais, Eselsberg ( 6V///, in part)., Biigti Beds. 



The Eckingen, Ulm, formation also contains a Lower Miocene 

 fauna, indicating that the Diceratheres may have persisted into 

 this period. 



Other indications as to Miocene persistence are those afforded 

 by a juvenile lower jaw and a maxillary series in the Ecole des 

 Mines collection, Paris, from the Sables de 1' Orleanai's, typical 

 Lower Miocene ; these were kindly shown the writer by the Cu- 

 rator, M. Douville ; they are of about the size of A.platyodon Mer- 

 mier, but they almost certainly constitute a new species which 

 probably belongs in the Diceratheriinae. The animal is consider- 

 ably larger than D. miniituin. 



Incertce Sedis. 

 Diceratherium douvillei/ sp. nov. 



Type : A maxillary series Coll. Ecole d. Mines, Paris. Definition : Type : 

 Upper premolars with crenulated anterior border of metaloph, and reduced 

 antecrochet ; upper molars with large crochet and antecrochet, crista not ap- 

 parent in worn teeth. 



Fig. 6. Diceratherium douvillei. Type: Paris. After a photograph by M. Douville. 



This species is placed incertce sedis, phyletically. The indica- 

 tions that it belongs to the Diceratheriinae are, first, the crenulated 

 or pectinate anterior border of the metaloph in the upper pre- 

 molars as in C. tridactylus j second, the tubercle in the valley of 



' Dedicated to M. Henri Douville, to whose kindness the author is indebted, both for the 

 permission to describe the type and for the accompanying photograph (Fig. 6). 



