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Pare 13. 
Chelone longiceps. 
Fig. 
1. Upper view of the carapace, two thirds of the natural size. 
1. Nuchal plate. 
2—11. Neural plates. 
2. Under view of the plastron, two thirds nat. size. 
9. Entosternal. 
1. Episternals. 
2. Hyosternals. 
3. Hyposternals. 
4. Xiphisternals. 
