RHIXOCEROTID^. 153 



47447 o Fragment of the left maxilla of a young individual, showing 

 mm. 3 , mm. 4 , and m. 1 (all imperfect) ; from the Lower 

 Miocene of the Auvergne. There is small "crochet" in 

 the unworn m. 1 . Croizet Collection. Purchased, 1848. 



M. 1455. Fragment of the right maxilla, containing m. 1 and m. 2 ; 

 from the Upper Eocene phosphorites of Caylux (Tarn-et- 

 Garonne), France. With the exception of heing somewhat 

 larger, these teeth agree precisely with those of jSo. 29624. 



Purchased, 1884. 



34730. The hinder upper cheek-teeth of both sides of a small indi- 

 vidual ; from the Lower Miocene of Chaptuzat (Puy-de- 

 Dome), France. Bravard Collection. Purchased, 1852. 



M. 1456. The unworn third left upper true molar ; from Caylux. 



Purchased, 1884. 



M. 1459. The first left upper premolar ; from Caylux. This speci- 

 men agrees very closely with the corresponding tooth of 

 No. 29624. Purchased, 1884. 



M. 1458. Three lower true molars ; from Caylux. 



Purchased, 1884. 



M. 1457. Fragment of the left ramus of the mandible, containing 

 pm. 4; from Caylux. Purchased, 1884. 



M. 1460. The ri#ht lower canine ; from Caylux. Purchased, 1884. 



M. 1730. Fragment of the right ramus of the mandible, containing 

 mTx and the first crescent of m . 3 ; from Caylux. The 

 cingulum is very strongly developed. Purchased, 1884. 



34721. Part of the right ramus of the mandible, showing the last four 

 cheek-teeth ; from the Lower Miocene of Antoin (Puy-de- 

 Dome). The development of the cingulum is much less 

 strong than in No. M. 1730. 



Bravard Collection. Purchased, 1852. 



34721 a. A right lower true molar ; from the Lower Miocene of 

 Puy-de-D6me. Bravard Collection. Purchased, 1852. 



34741. A patella ; from the Lower Miocene of Perignat (Puy-de- 

 Dome). Bravard Collection. Purchased, 1852. 



