OBSERVATIONS ON TESTUDO NIGRITA — WAITE. 
103 
Hind limb . — 
A? 
DJ 
Femur, length 
... 182 
150 
„ least circumference 
99 
70 
„ head, longest diameter 
59 
40 
,, condyles, breadth ... 
81-5 
00 
Tibia, length 
... 140 
no 
„ least circumference ... 
... 99 
70 
Fibula, length 
... 134 
109 
,, least circumference 
... 48 
39 
In references to the pelvis, T fail to find mention of the opipubic 
cartilage becoming ossified. Such is distinctly the condition in 
the skeleton of the female, and the following sketch shows its 
form and relative position. 
This bone is not ankylosed with the pubic, and may therefore 
be easily lost during the process of maceration. The additional 
figure in the foregoing table of measurements, is inclusive of this 
epipubic bone. 
The apex of the entoplastral spine reaches a point situated 
220 mm. behind the edge of the gular prominence, it has a width 
of 12 mm., and is quite free from the plastron for 45 mm. at its 
distal extremity. 
The accompanying Plate (xxii.) is reproduced from a photograph 
of the skeleton of the female, from which one side has been re- 
moved to show the internal structure. I t will be seen that the 
horny sheaths covering the jaw have been retained and that the 
hyoids are suspended in their natural position. The extent and 
attachment of the epibubic bone, above referred to, may also be 
traced. 
