198 LABYKINTHODONTIA. 



41851 b. Slab showing the imperfect skeleton of a small individual ; 

 from Jarrow. This specimen is much smaller than either 

 of the two types figured in the ' Trans. Boy. Irish 

 Academy,' vol. xxiv. pi. xix. Purchased, 1870. 



41851 C Slab with the imperfect skeleton of a somewhat larger 

 individual; from Jarrow. Purchased, 1870. 



41851 d. Slab showing the impression of a pelvic limb not im- 

 probably belonging to this form. Purchased, 1870. 



Ceraterpetum crassum, Fritsch \ 

 Syn. Scincosaurus crassus, Fritsch 2 . 



The orbits smaller, and the skull smaller in proportion to the body 

 than in the type species. 

 Hah. Europe (Bohemia). 



The originals of the following specimens were obtained from the 

 GasJcohle (Lowest Permian) of Nyran (Pilsen). The specimens 

 %v ere purchased in 1882. 



R. 351. Electrotype from a fragment of shale, showing portions of 

 the skeleton, among which is the median thoracic plate. 

 Original figured by Eritsch in his ' Eauna der Graskohle/ 

 vol. i. pi. xxvii. fig. 4, and the thoracic plate in pi. xxix. 

 %. 7. 



R. 352. Electrotype showing the dislocated skeleton. A pes is 

 figured by Eritsch, op. cit. pi. xxviii. fig. 10. 



R. 353. Electrotype showing the imperfect skeleton. The sacral 

 region and pelvic limbs figured by Eritsch, op. cit. pi. xxx. 

 fig. 1. 



R. 354. Electrotype exhibiting the thoracic and caudal regions. 

 Nine of the ventral scutes are figured by Eritsch, op. cit. 

 pi. xxx. fig. 5. 



1 Sitz. k.bohm. Ges. Wiss. for 1875, p. 72 (1876).— Scincosaurus. 



2 Loc. cit. 



