59 
Width 
of 
outer 
Width of 
25 
*85 
*20 
25 
*00 
*50 
*90 
*75 
*40 
65 
0*55 
1*90 
2-25 
1*25 
1*55 
Length of first vertebral plate along median 
line ... 
Greatest width of same in front, about* 
Width of same behind ... 
Length of second vertebral plate 
Greatest width of same 
Length of third vertebral plate 
Greatest width of same 
Length of fourth vertebral platef 
Greatest width of same 
Length of fifth vertebral plate 
Width of same in front... 
Greatest width of same behind 
Length of intragular plate 
Greatest width of same 
Length of interpectoral suture... 
Length of outer edge of each gular plate 
» humeral plate 
„ pectoral plate 
„ abdominal plate 
„ femoral plate 
„ anal plate 
plastron across ends of posterior 
angles of humeral plates ... 
plastron across posterior fifth of 
pectoral plates 
Width of plastron across middle of femoral 
plates 
Width of plastron across tips of caudal plates 
Distance between tip of caudal plate and 
nearest point of carapace... 
The description is taken from a single example 
the shields alone have been preserved — in the collection of the 
Australian Museum, Sydney, collected in the year 1869 at 
Cape York, Q., by Mr. J. A. Thorpe. 
20 
60 
80 
45 
00 
35 
3-50 
3*70 
3-70 
1-40 
110 
of which 
* Owing to the fracture mentioned in a preceding note (p. 57), it is 
impossible to give this measurement with perfect accuracy, but by 
measuring the length of the suture with the normal anterior margino- 
brachial, and then measuring the same distance along the fractured 
plates from the inner posterior angle of the margino-nuchal, the distance 
between the two points thus obtained should be the greatest width, or 
closely approximate thereto. 
fin measuring the length of the fourth vertebral plate we have 
included the small posterior intercalated plate (see note p. 57), believing 
it to be an accidental fracture from this rather than from the succeeding 
plate. & 
