1897] RESTORATION OF EXTINCT REE TILES 195 



(R. 24 16) and (R, 26 1G) and the descriptions and figures of these 

 specimens by Andrews {Ann. & Mag. Nat. Hist., ser. G., vol. 

 xvi, 1895, p. 429; ibid., ser. 6., vol. xv., 1895, p. 333; Qeol. 

 Mag., dec. 4., vol. iii, 1896, p. 145) should here be acknow- 

 ledged. 



Fariasaurus baini was chosen to represent the Anomodontia, 

 chiefly because of the completeness of the skeleton exhibited in 

 the Reptile Gallery of the Geological Department of the museum. 

 This skeleton (R. 1971), from the Karoo formation (Trias), was dis- 

 covered by Prof. H. G. Seeley, near Tamboer Fontein in Cape 

 Colony, and was described and figured by him in the Phil. Trans. 

 (1892, B.,pp. 311-370, pis. 17-19, 21-23). The Anomodontia con- 

 stitute such a heterogeneous collection of reptiles that it would be 

 difficult to say what species might be considered to be most typical 

 of the Order. But the completeness of this specimen of Fariasaurus 

 certainly renders it more suitable for the purpose in hand than any 

 other Anomodont yet known. The diagram (Fig. 4) is not a 



Fig. 4. Pariasaurus baini, from the Trias of Cape Colony, (x.'s) 



restoration in the same sense as the other three, because, in the 

 first place, the completeness of the skeleton renders possible a very 

 close adherence to nature, and, in the second, because, the whole 

 of our knowledge of the species being derived from this one speci- 

 men, a reconstructed diagram would be less instructive than an 

 outline drawing of the specimen boldly treated. The unimportant 

 cracks in the bones shown in the large folding plate in the Phil. 

 Trans, have been omitted, and a little diagrammatic cross-shading 

 has been employed here to give the effect of distance, although it 

 was not found necessary in the other three diagrams. The legs are 

 shown articulating in the glenoid cavity and the acetabulum, as in 

 the mounted specimen but not as in the plate ; and the anterior 

 cervical vertebrae, which during fossilisation were united into a 

 block of extreme upward curvature, are given a more convenient 

 disposition so as to articulate with the condyle of the skull, 



