>) 
196 Tue Orrawa NATuRALIST. [January 
cannot with certainty be referred to B. variolosus. If Compsemys 
ogmtus and Basilemys variolosus could be proved without doubt to 
be identical, the name ogmzus would have priority. 
EXPLANATION OF PLATES. 
[Pip ama OE 
- 
Figure 1. Distal half of left 5th costal plate of TZestwdo exornata, as seen 
from above ; natural size. Type. 
Figure 2. View of upper surface of proximal end of left 6th costal plate of 
same species ; natural size. 
Figure 3. View from above of proximal end of left 1st costal plate of s same 
species ; natural size. 
Figure 4. Anterior half of carapace of Baéna pulchra ; viewed from above ; 
one-half the natural size. Type. 
V, vertebral shield; C, costal shield; SMW, supramarginal 
shield ; 7, neural plate ; ¢, costal plate ; 7, marginal plate. 
PLATE IV. 
Figure 1. Plastron of Baéna pulchra ; viewed from below ; one-half natural 
size. Type. 
IG, intergular shield; G, gular shield; HUM, humeral shield ; 
PEC, pectoral shield; JZ, inframarginal shield; 4%, marginal 
shield; AB, abdominal shield ; FEM, femoral shield; AW, anal 
shield ; ef, epiplastral plate; et, entoplastral plate; Ayp, hyo- 
plastral plate ; msp, mesoplastral plate ; EDP % hypoplastral plate; © 
xp, ziphiplastral plate ; m, sensei plate ; * centre of front mar- 
gin of carapace. 
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