24 DISCOSAURUS. 
4. Two vertebre, a carpal and two metacarpal bones and a phalanx, apparently 
all from the same individual. The specimens were found, with others, in Burlington 
County, N. J. 
Of the vertebre, the one represented in Figs. 7, 8, 9, Plate V, is almost identical 
in form and size with the first described specimens from Alabama. The articular 
surfaces of its body present intermediate characters to those of the Alabama speci- 
mens and the one from Mississippi. As previously stated, in the former, the articular 
surfaces are defined by a narrow groove from the rest of the body, of which an acute 
edge forms one boundary of the groove and the prominent convex periphery of the 
articular surface the other. In the Mississippi specimen the corresponding groove 
is nearly obsolete, so that the articular surfaces appear defined from the rest of the 
body by an acute edge. In the Jersey specimen the acute edge forms a conspicuous 
linear ridge, and a feeble groove defines this from the articular surfaces. The latter 
are less depressed towards the centre, and less prominent at the periphery than in 
the Alabama specimens, but in both characters are more so than in the Mississippi 
specimen. In the Jersey specimen the inflections for the apparent accommodation 
of chevron bones are deeper than in the Alabama specimens, and give the under 
part of the body at its extremities a remarkably festooned appearance, as repre- 
sented in Fig. 8. The body inferiorly, between the inflections, in front and behind, 
does not exhibit the ridges so prominently as in the other specimens, but is other- 
wise the same. . 
The measurements of the vertebra are as follows :— 
Lines 
Length of the body in the median line inferiorly between the acute edges . iP 
Length between the lateral inflections of the latter . ; cl : c Sede 
Length of the body laterally between the acute edges > 20 
Extreme length of the body between the prominent margins of the ponealae ex- 
tremities c Q : - : : : c . . 24 
Breadth of the shales Stories : : : : cE : 5 ; . 34 
Height of the articular extremities . 3 ‘ : : F : : a watt 
Width of spinal canal : 3 : : : : c : : : Su) Tie 
Transverse diameter of costal pits é ; : : . : C : egls 
Vertical diameter of costal pits . : : : é 4 : : c 5 akW) 
The other vertebra, represented in Figs. 1, 2, 3, Plate V, much larger than the 
former, appears to belong to the back part of the cervical series. The body is a 
transverse section of a cylinder flattened from above downward and moderately 
narrowed at the sides and underneath towards the middle. The articular extremities 
are nearly plane surfaces, transversely elliptical, but emarginate above, and are de- 
fined from the rest of the body by a‘sub-acute border. The general level of the 
posterior surface is slightly depressed, and its periphery is slightly convex. The 
anterior surface is a little more depressed, but presents a slight central prominence. 
The under part of the body is less depressed than the sides, and it presents three 
large venous foramina, The vertebral arch is coosified with its body on a level 
with the floor of the spinal canal, which is almost a plane surface. The spinal 
canal is large and ovoid in outline. A portion of the spinous process, preserved in 
the specimen, proves it to be a strong, broad plate. It is deeply grooved behind 
