Mr. BELL on Two new Genera of Land Tortoises. 399 
immediately behind the posterior sterno-costal ridge, and 
is continued across the back between the fifth and sixth 
ribs, and between the seventh and eighth marginal, the 
second and third costal, and across the third vertebral 
scuta. Sternum large; the general colour blackish, each 
scutum having a yellow margin, especially in the older 
specimens ; anteriorly bifid, projecting beyond the upper 
shell; the inferior surface very concave: gular scuta ex- 
tending far within the shell, and affording a long and firm 
support to the head and neck. The anterior opening of 
the shell extending far back on each side. The post-hu- 
meral plates small. The lateral connection between the ster- 
num and ribs extending from the fourth to the seventh pairs 
of marginal plates inclusive. Posterior opening of the shell 
very wide, particularly at the sides, for the motion of the 
hind legs. The ante-femoral plates very large. The ster- 
num in contact with the inferior margin of the upper shell 
when the moveable portion is closed. 
I regret, that in consequence of the individual which had been 
living in my possession having been after its death sent to be 
stuffed, and suffered to become putrid, the notices of the animal 
are necessarily so confined. 
Dimensions of a remarkably large specimen. 
Ft. In. Lin. 
Length of the upper shell following the curvature O 11 5 
Length i5 a donte — . .1 52059953009... 
Breadth following the curvature 0.8.9 
Circumference | gs Sees 
Lateral diameter n …:. «fi. ¥ 4 040 5 
Vertical diameter n-or =. i 0.4.0 
Length of the sternum 0.8.8 
VOL. XV. 3 F - Spec. 
