Dr. A. Smith Woodicard — A Triassic Reptile from Brazil. 255 



Africa ascribed to the Dinosaurian JEushelesaurus by Seeley ^ tbat the 

 new Brazilian reptile is probably allied to the latter. The striking 

 inequality in the size of the obliquely- curved toes is also less 

 suggestive of an Anomodont than of a Dinosaur ; and although it is 

 possible that some of the larger Anomodonts had a digital formula 

 like that of lizards and crocodiles, this was not the normal condition, 

 and a digit with four phalanges is more likely to have belonged to 

 a Dinosaur than to a member of the more primitive order. 



Fig. 4. — Ungual phalange, upper, lower (a), and articular (b) views, ar. hollowed 

 articular face ; I. flattened inner face ; ex. excavation of lower face, f nat. size. 



I therefore refer the new Brazilian fossils to a short -necked 

 Dinosaur allied to Eushelesaxirus, and I propose to name this reptile 

 Scajjhonyx in allusion to the unique inferior excavation of the ungual 

 phalanges. The species may be known as Scaphojiyx Fischeri. 



If this determination be correct, the rocks in which the bones were 

 found may be regarded as of Triassic age. Scaplionyx is also to be 

 considered as the first fossil land-reptile discovered in South America 

 which clearly belongs to the fauna of ' Gondwana Land.' 



Postscript, April, 1908. — The preceding paper was written in 1904, 

 when Professor Seeley' s determination of the cervical vertebra of 

 Euslcelesaurus had not been questioned. Since that time Baron P. von 

 Huene (Palseont. Abhandl., n.s., vol. viii, 1906, p. 123) has expressed 

 the opinion that the vertebra in question does not belong to a Dinosaur, 

 but to an Anomodont ; while Dr. E. Broom has described similar 

 vertebrae from the Upper Beaufort Beds of the Karoo Formation under 

 the new generic name of ErythrosucJms (Ann. S. African Mus., vol. v, 

 1906, p. 193). According to Dr. Broom's description this reptile is 

 not a Dinosaur, but exhibits many resemblances both to Belodonts 

 and to Anomodonts. From new specimens submitted to me by 

 Dr. I. C. "White, I am now of opinion that Scaplionyx is an 

 Anomodont. — A. S. "W. 



1 H. G. Seeley, " On Euslielesaurus Broivnii (Huxley) " : Ann. Mag. Nat. 

 Hist. (6), vol. xiv (1894), p. 339, fig. 7. Original vertebra now in the^British 

 Museum. 



