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The digit of four phalanges (figs. 3, 3 a) is interesting on account of the shape 
of the claw. The ungual phalange is laterally compressed and unsymmetrical, 
the left or less deep side being flattened or almost hollowed, while the other side 
is slightly convex. The bone is not marked by any lateral groove, but its lower 
face is considerably excavated and has a sharp rim. The two phalanges following 
the ungual are short and broad, and much constricted round the middle. The next 
bone, which perhaps admits of more than one interpretation, is more elongated 
than those just mentioned, but not so long as the ungual. It seems to be displaced 
in the fossil, being in fact accidentally turned on its long axis to an extent of 45° 
so that its imperfect right side only is seen in fig. 3, its left side in fig. 3a. If this 
interpretation he corret, the bone is another phalange, with the saddle-shaped 
proximal articular face somewhat deeper than wide. 
The detached ungual phalange (figs. 4,4 a, 4 v) resembles the corresponding 
bone of the digit just described in the concavity of its lower face (fig. 4a) and in 
its lack of bilateral symmetry ; but it is relatively large and expanded. Its arti- 
cular face (fig. 4 v) is oblique and much deeper than broad ; its slightly convex 
right side (fig. 4) is excessively large, owing to the expansion of the thin, rounded, 
distal border ; while its flattened left side (fig. 4) is a comparatively small 
triangular area. 
The two ungual phalanges evidently belong to one and the same foot, which 
must have had obliquely curved digits. If constructed asin the Sauropodons Dino- 
saurs, this foot would be of the left side, the large claw belonging to digit I, 
while the series of four phalanges probably represent digit III. 
It is difficult to determine the affinities of a reptile known only by remains so 
fragmentary as those now described, It is evident, however, that the bones are 
those of a land-reptile; and the characters of the vertebras suggest that they 
belong either to an Anomodont or to a primitive Dinosaur. 
The fact that the dorsal vertebral centrum shows no clear mark of an arti- 
cular facette for the rib, seems to prevent its reference to an Anomodont ; while 
the shape and character of the cervical vertebra are so closely similar to those of 
a corresponding vertebra from the Karroo formation of South Africa ascribed 
to the Dinosaurian Euskelesaurus by Seeley (1) that the new Bveazilian reptile 
is probably allied to the latter. The striking inequality in the size of the obli- 
quely curved toes is also less suggestive of an Anomodont than of a Dinosaur ; 
and although it is possible that some of the Jarger Anomodonts had a digital for- 
mula 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. I therefore refer the new Brazilian 
fossils to a short-necked Dinosaur allied to Euskelesaurus, and I propose to name 
this reptile Scaphony« in allusion to the unique inferior excavation of the ungual 
phalanges. 
The species may be known as Scaphonysx fischeri. 
(4) H. G. Seeley « On Euskelesaurus brownii», Ann, & Mag. Nat. Hist. (6) vol. XIV, 
(1894), p. 339, fig. 7. 
