Pig. 44. 



Skeleton of Luth or Leathery Turtle (Dermochelys coriacea). 

 To show complete separation of shell from the ribs. (No. 186a.) 



Fig. 45. 



Skeleton op Green Turtle [Chelone my das). 

 To show union of shell with ribs. (No. 182.) 



(From specimens in the Museum.) 



\To face fiaye 42. 



