ANTHRACOSATTRID.E. 157 



42753. Fragment of rock with the greater part of the right lateral 

 (clavicle) and a fragment of the median plate of the 

 thoracic girdle. Part of the sculpture is preserved. 



Purchased, 1871. 



Genus non det. 

 Known by fragmentary bones, characterized by a pustular sculp- 

 ture (like that of Micropholis), and indicating a large form. 

 Hob. Europe (Germany). 



21530 x. Three imperfect sculptured bones ; from the Muschelkalk 

 bone-bed (Middle Trias) of Crailsheim, Wiirtemberg. The 

 sculpture accords with that of the specimens from the 

 same locality figured by E. Eraas in the ' Palseonto- 

 graphica,' vol. xxxvi. pi. vi. figs. 15, 16, as Labyrinthodon 

 sp. ; that term being apparently used as equivalent to 

 Labyrinthodont. Purchased, 1847. 



Genus non det. 



The undermentioned specimens indicate a large Labyrinthodont 

 in which the teeth have a large pulp -cavity, and much simpler 

 foldings than in Mastodonsaurus. The specimens No. 48833 are 

 said to be some of those referred, in the 4 Rep. Brit. Assoc/ for 1874, 

 p. 157, to Metoposaurus diagnostics, but the teeth are very much 

 larger than in that species. 



Hab. Europe (England). 



44833. Fragments of jaws with teeth, in matrix ; from the Rhastic 

 of Aust Cliff, near Bristol. Some of the teeth have been 

 cut to show the internal structure. 



Presented by Benjamin Bright, Esq., 1873. 



R. 394. Other fragments of similar teeth and jaws, in matrix ; from 

 Aust Cliff. Enniskillen Collection. Purchased, 1882. 



Family ANTHRACOSAURID.E. 



Skull usually triangular and more or less angulated, with the 

 cranial sculpture well marked, the occipital condyles ossified, and 

 the palatine foramina very small and placed far back ; dentine of 

 the teeth more or less complexly plicated. A ventral armour of 

 elongated dermal scutes ; and probably a sclerotic ring. Bodies of 

 vertebrae fully ossified in the adult ; intercentra absent or present. 



According to Atthey's figure of the skull of the type genus, the 



