12 PROCEEDINGS OF THE NATIONAL MUSEUM vor<. 73 



EXPLANATION OF PLATES 



Plate 1 



Chelys fimhriata 



View of carapace from above. X 0.44 



c. s. 1 — c. s. 4. Costal scutes. 



m. s. 1— m. s. 12. Marginal scutes. 



n. s. Nuchal scute. 



V. s. 1 — V. s. 5. Vertebral scutes. 



Plate 2 



Fig. 1. CJielys finibriata 



View of rear of carapace from behind. X 1 

 To show specially the large epithecal bone on the twelfth marginal scute, 

 m. s. 11, m. s. 12. Eleventh and twelfth marginal scutes. 

 V. s. 5. Fifth vertebral scute. 



Fig. 2. Clemmys insculpta 



View of carapace from above. X 1 



Shows the vertebral, costal, and marginal scutes, their areoles. the outcrop- 

 ping edges of the successive horny layers, and the direction of expansion. 



o 



