42 CN6 PLATA. 



M 2476. The right tibia, in two portions; from Caylux. 



Purchased, 1885. 



28233 b. The greater number of the bones of the right hind foot ; 

 from Debruge. The length of the third metatarsal is 

 0,078, and its proximal width 0,013. 



Bravard Collection. Purchased, 1852. 



M. 2471-2. The right astragalus, and the left third metatarsal ; 

 from Debruge. The length of the latter is 0,070, and its 

 proximal width 0,012. Purchased, 1885. 



M. 2477. Two specimens of the left third metatarsal; from Caylux. 

 The length of the larger specimen is 0,082, and of the 

 smaller 0,076. Purchased, 1885. 



The following specimen is not specifically determined. 



21902. The imperfect right calcaneum ; from the Lower Miocene of 

 Ronzon, near Puy-en-Yelay (Haute-Loire), France. 



Croizet Collection. Purchased, 1848. 



Genus ANCHILOPHUS, P. Gervais \ 

 Dentition : I. |, C. -}, Pm. ? 4 , M. |. 



This genus appears intermediate between Pachynolophus and 

 Anchitherium. The last upper premolar is as complex as the true 



Fig. 8. 



AncMophus radegundensis. The third left upper true molar ; from the Eocene 

 of Lautrec (Tarn). }. Letters as in fig. 1, p. 4. (From Gaudry's ' Eii- 

 chainements.') 



molars ; there are well-marked median ridges on the outer columns 

 of the upper molars (fig. 8), and the third lower true molar has a 

 large third lobe. The structure of the lower molars presents some 

 resemblance to that of Pachynolophus. 



1 Zool. et Pal. Fransaises, 1st ed. vol. ii. Expl. no. 35, p. 8 (1848-1862), 



