MASTODONSAUKLD^E. 151 



symphysis, with its tusks. The original is in the Munich 

 Museum, and is figured by E. Fraas in the ' Palseonto- 

 graphica/ vol. xxxvi. pi. xi. fig. 2. 



Presented by Prof. K. A. von Zittel, 1888. 



R. 1439 c. Cast of slab with the ventral surface of part of the 

 mandible exposed. The original is in the Museum at 

 Munich. Presented by Prof. K. A. von Zittel, 1888. 



Of the folloiving specimens from the Middle Keuper Sandstone of 

 Feuerbach-Haide at least the majority may be referred to this 

 species. 



33074. Slab of sandstone exhibiting the external surface of the 

 median thoracic plate. This specimen, which seems to 

 include the imperfect anterior and left lateral moiety of 

 the bone, accords well with the specimen of which the left 

 half is figured by Quenstedt in his ' Mastodon saurier 

 Wiirttembergs,' pi. iv. fig. 1 ; and is unlike the corre- 

 sponding bone of Metoposaurus. Purchased, 1848. 



14675. Slab of sandstone showing the impression of the external 



surface of the right lateral thoracic plate. This specimen, 

 which has a simple radiate sculpture, accords with the 

 imperfect lateral plate figured by Quenstedt, op. cit. fig. 12, 

 and is unlike the corresponding bone of Metoposaurus. 



Purchased. 



14676. Fragment of sandstone showing the impression of an imper- 



fect lateral plate agreeing with the preceding. The 

 proximal portion is wanting. Purchased. 



15271- Mass of sandstone showing the outer aspect of the greater 

 part of the left thoracic plate, and the impression of part 

 of the inner surface of the median plate. Purchased. 



R. 281. Fragment of sandstone showing the outer surface of an 

 imperfect and smaller lateral thoracic plate. 



Egerton Collection. Purchased, 1882. 



R. 84. Fragment of sandstone showing the outer surface of a 

 sculptured bone. The sculpture differs from that of the 

 preceding specimen by its pitted character, but it is 

 not certain that the specimen belongs to the thoracic 

 buckler. 

 Transferred from the Museum of Practical Geology, 1884. 



